IllustrationWHEN THE SUNROOF RETRACTS OR CLOSES IT MAKES A LOUD NOISE (SOUNDS LIKE AN MRI MACHINE). I KEEP IT CLOSED FOR POSSIBLE GLASS CRACKING SAFETY REASONS. THIS OCCURS WHILE IDLE OR DRIVING ON ANY STREET/HIGHWAY SURFACE. AUDI THINKS ITS A MOTOR ISSUE AND IS NOT COVERED BY WARRANTY OR ANY RECALL.
2014 Audi A8
Owner reports · Recalls · Investigations
Limited comparison data
There is not enough comparable history to draw a useful model-year comparison.
About this comparison →How this year compares
Owner complaints by model year
Compare all A8 years →Counts vary with age, sales and reporting. They are not failure rates.
What owners reported most
All reported categories
Tap a category to read its complaints. One report may name several components.
When problems were reported
Mileage at the reported incident
Limited mileage data: 7 of 18 reports include usable mileage. There isn’t enough coverage to show a useful chart.
NHTSA’s mileage field refers to the reported incident, not necessarily the filing date. This shows report counts, not the likelihood of a failure.
What to inspect
Issues worth paying extra attention to based on owner reports.
- Engine. Review the 12 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Fuel/propulsion System. Review the 3 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Forward Collision Avoidance. Review the 2 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
NHTSA owner reports · September 18, 2026 snapshot.
0 crash reports0 fire reports0 injury reports
What owners actually said
18 reportsWHILE DRIVING AND GETTING OFF A HIGHWAY EXIT THE VEHICLE WITHOUT NOTICE STARTED TO STALL AS IF MISFIRING AND RUNNING ERRATIC WITHOUT NO ENGINE TROUBLE CODES OR WARNING LIGHTS AT A RED LIGHT STOP. I MANAGED TO GET HOME ABOUT HALF MILE AND ONCE PARKED COULDN'T TURN THE VEHICLE ON. IT ONLY CRANKED AND WHEN IT DID TURN ON IT WOULD S…
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WHILE DRIVING AND GETTING OFF A HIGHWAY EXIT THE VEHICLE WITHOUT NOTICE STARTED TO STALL AS IF MISFIRING AND RUNNING ERRATIC WITHOUT NO ENGINE TROUBLE CODES OR WARNING LIGHTS AT A RED LIGHT STOP. I MANAGED TO GET HOME ABOUT HALF MILE AND ONCE PARKED COULDN'T TURN THE VEHICLE ON. IT ONLY CRANKED AND WHEN IT DID TURN ON IT WOULD SHAKE IDLE ERRATIC AND THEN TURN OFF. TOWED IT TO THE DEALER FEW DAYS LATER AND WAS TOLD NEEDED 2 NEW TURBOS AT A COST OF $12K. ASKED HOW IS THAT POSSIBLE AND WAS TOLD THEY GET STARVED OF OIL AND EVENTUALLY FAIL. THEREAFTER DID SOME RESEARCH AND REALIZED THERE ARE COUNTLESS OTHER IN THE AUDI FORUMS WITH SAME ISSUES ON THE AUDI V8 4.0T ENGINE. THERE ARE TSB'S FROM AUDI ADDRESSING HOW TO FIX THIS PROBLEM THAT IT'S A SMALL OIL STRAINER PROBLEM THAT GETS CLOGGED AND STARVES THE TURBOS AND PREMATURELY FAIL. AUDI REVISED THIS STRAINER PART IT SEEMS BUT NEVER WARNED OR ADVISED ANY AUDI OWNERS WITH THESE ENGINES SO IT CAN BE CHANGED BEFORE IT'S TO LATE. I KNOW HAVE 2 BAD TURBOS BECAUSE OF THIS FAULTY DESIGN WHICH CREATES THIS MAJOR EXPENSIVE PROBLEM FOR A FAULTY PART THAT'S $20. THERE SHOULD BE A RECALL ON THIS PART BEFORE IT'S TO LATE AND MORE DAMAGE OCCURS TO OTHER AUDI OWNERS WITH SIMILAR ENGINES.
THE CAR ENGINE STALLED WHILE DRIVING ON THE HIGHWAY, THE VEHICLE WOULDN'T RESTART. HAD TO CALL TOW TRUCK TO TAKE IT TO THE DEALERSHIP. BOTH TURBOS HAD MECHANICAL MALFUNCTION AND HAD TO BE REPLACED. *TR
THE 4.0T ENGINE STARTS TO HAVE TURBO COOLANT LEAK AND PCV VALVE LEAK AT AROUND 48000 MILES. THE COOLANT LEAK COULD CAUSE TURBO FAILURE AND THE CHECK ENGINE LIGHT IS ON. CANNOT HAVE FULL POWER.
I WAS DRIVING MY CAR AND HAD JUST CROSSED A TRACK, WHEN OUT OF NO WHERE WITH NO WARNING MY CAR STOPPED. MY WHEEL STARTED TIGHTENING AND I COULDN'T PRESS ON THE BRAKES. THANKS GOODNESS I DIDNT HAVE A CAR BEHIND ME BECAUSE THE CAR JUST LOST ALL POWER. I COULDN'T EVEN STEER THE CAR TO THE SIDE OF THE ROAD. TRY TO RESTART THE VEHICL…
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I WAS DRIVING MY CAR AND HAD JUST CROSSED A TRACK, WHEN OUT OF NO WHERE WITH NO WARNING MY CAR STOPPED. MY WHEEL STARTED TIGHTENING AND I COULDN'T PRESS ON THE BRAKES. THANKS GOODNESS I DIDNT HAVE A CAR BEHIND ME BECAUSE THE CAR JUST LOST ALL POWER. I COULDN'T EVEN STEER THE CAR TO THE SIDE OF THE ROAD. TRY TO RESTART THE VEHICLE BECAUSE I WAS DUMB MINDED TO WHAT WAS GOING ON, BUT THE CAR WOULD NOT RESTART. I HAD TO CALL A WRECKER TO COME GET ME AND THE CAR. NOW PICTURE ME, A WOMAN ALONE, IN THE ROAD AT10:30 AT NIGHT, WAITING FOR A WRECKER TO COME GET MY BEAUTIFUL, LUXURY CAR WITH JUST 69,000 MILES AND REGULAR MAINTENANCE UP KEEP. I TOWED THE CAR TO AN AUDI DEALERSHIP TO FIND OUT THAT THE TURBOS WENT OUT ON THE CAR AND WARRANTY WANT COVER THIS $11,071 BILL. PURCHASED THIS CAR AT 39,000 MILES AND PAID A PRETTY PENNY, STILL OWE A PRETTY PENNY ON THIS VEHICLE AND NOW I HAVE TO PAY THIS HUGE REPAIR BILL ON TOP OF A HUGE CAR NOTE. BTW, CAR STILL AT SHOP, STILL NOT RUNNING UNLESS THE TURBOS ARE REPLACE. THIS IS NOT EVEN THE ENGINE ON THE CAR AND IT COST THIS EXPENSIVE.
SUNGLASSES HOLDER WILL NOT STAY CLOSED AND FALLS DOWN BLOCKING MY REARVIEW MIRROR. TRIED SEVERAL TIMES TO CLOSE IT AND IT WILL NOT CLOSE. I CANNOT SEE CLEARLY OUT OF MY REARVIEW MIRROR WHICH IS HAZARDOUS TO MY DRIVING WHEN TRYING TO SWITCH LANES AND/OR TELL HOW CLOSE SOMEONE IS TO MY BUMPER TO PREVENT MY CAR FROM BEING REAR EN…
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SUNGLASSES HOLDER WILL NOT STAY CLOSED AND FALLS DOWN BLOCKING MY REARVIEW MIRROR. TRIED SEVERAL TIMES TO CLOSE IT AND IT WILL NOT CLOSE. I CANNOT SEE CLEARLY OUT OF MY REARVIEW MIRROR WHICH IS HAZARDOUS TO MY DRIVING WHEN TRYING TO SWITCH LANES AND/OR TELL HOW CLOSE SOMEONE IS TO MY BUMPER TO PREVENT MY CAR FROM BEING REAR ENDED. I'M WORRIED THAT AN ACCIDENT MAY HAPPEN DUE TO THIS ISSUE. I RESEARCHED THE ISSUE AND APPARENTLY OTHER AUDI DRIVERS ARE EXPERIENCING THE SAME ISSUE ACCORDING TO ONE AUDI SERVICE FORUM (HTTPS://WWW.AUDIWORLD.COM/FORUMS/Q5-SQ5-MKI-8R-DISCUSSION-129/SUNGLASS-HOLDER-NOT-STAYING-UP-SRSLY-2856965/). THIS ALSO APPEARS TO BE AN ISSUE WITH THE VOLKSWAGON BRANDED CARS.
ISSUE WITH THE WINDSHIELD LEAKING PROFUSELY. THIS LED TO MOISTURE ISSUES INSIDE THE CAR WHEN DRIVING IN THE RAIN, WHICH COULD PRESENT A SERIOUS VISIBILITY HAZARD. THERE ARE ALSO NUMEROUS ELECTRICAL COMPONENTS (MAJOR VEHICLE CONTROL AND DIAGNOSTIC MODULES) LOCATED IN THE TRACKING PATH OF THE WATER WHICH COULD CAUSE SERIOUS ISSUES…
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ISSUE WITH THE WINDSHIELD LEAKING PROFUSELY. THIS LED TO MOISTURE ISSUES INSIDE THE CAR WHEN DRIVING IN THE RAIN, WHICH COULD PRESENT A SERIOUS VISIBILITY HAZARD. THERE ARE ALSO NUMEROUS ELECTRICAL COMPONENTS (MAJOR VEHICLE CONTROL AND DIAGNOSTIC MODULES) LOCATED IN THE TRACKING PATH OF THE WATER WHICH COULD CAUSE SERIOUS ISSUES TO THE DRIVABILITY AND SAFETY OF THE VEHICLE IF IN MOTION. UPON REPLACEMENT OF THE WINDSHIELD IT WAS DISCOVERED THAT THERE WAS A COMPLETE SECTION OF THE WINDSHIELD SEALANT MISSING ALONG THE TOP EDGE OF THE WINDSHIELD, NEAR THE REAR VIEW MIRROR ON THE PASSENGER SIDE. I AM A MEMBER OF SEVERAL AUDI VEHICLE FORUMS AND THIS IS A WELL KNOWN AND DOCUMENTED ISSUE THERE. I JUST WANTED TO MAKE THIS AGENCY AWARE OF THE ISSUE BEFORE ANYONE GOT SERIOUSLY HURT OR KILLED DUE TO NOT BEING ABLE TO SEE WHILE DRIVING DOWN THE ROAD.
2014 AUDI A8 VEHICLE HAS 57534 MILES ON IT, A WELL MAINTAINED VEHICLE BY AUDI DEALERSHIPS. WHEN PASSING A VEHICLE ON A 2 LANE HWY THE PERFORMANCE SEEMED TO BE COMPROMISED. HEARD A GURGLING LIKE SOUND. THE EPC LIGHT CAME ON. PULLED VEHICLE OVER TO A SAFE LOCATION AND VEHICLE WOULD NOT RESTART. DEALERSHIP DIAGNOSED TURBO'S BLOWN …
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2014 AUDI A8 VEHICLE HAS 57534 MILES ON IT, A WELL MAINTAINED VEHICLE BY AUDI DEALERSHIPS. WHEN PASSING A VEHICLE ON A 2 LANE HWY THE PERFORMANCE SEEMED TO BE COMPROMISED. HEARD A GURGLING LIKE SOUND. THE EPC LIGHT CAME ON. PULLED VEHICLE OVER TO A SAFE LOCATION AND VEHICLE WOULD NOT RESTART. DEALERSHIP DIAGNOSED TURBO'S BLOWN AND ENGINE CONTAINS METAL CAUSING TOTAL ENGINE FAILURE. OUR CONCERN IS IF THE ENGINE WOULD HAVE SEIZED UP WHEN PASSING ANOTHER VEHICLE THERE IS A REAL POSSIBILITY THAT AN ACCIDENT COULD OCCUR. THERE ARE A FEW TECHNICAL SERVICE BULLETINS CONCERNING THIS TURBO ISSUE, ONE IN FEBRUARY 2017 AND A PRODUCTION SOLUTION TO THE OIL SUPPLY LINES CAME IN MAY 2018. WHAT ABOUT ALL THE VEHICLES THAT ARE OUT THERE STILL ON THE ROADS NOT UNDER WARRANTY AND OWNERS HAVE NO IDEA THIS ISSUE EXISTS? IT SEEMS TO BE A PROBLEM WITH THE 4.0L ENGINES. TURBO'S. "AUDIZINE" WEBSITE DID A FORUM POLL TITLED 4.0TT BLOWN TURBO POLL. THERE IS ALSO A ISSUE WITH COOLANT LEAKAGE ON THE TURBO'S THAT CAN CAUSE DAMAGE PER TECHNICAL SERVICE BULLETIN MAY 2017. I AM HOPING FOR A RECALL BEFORE AN INJURY OCCURS.
Official recalls
522V178000 · Engine And Engine Cooling:engine:gasoline:turbo/supercharger
Mar 23, 2022
Volkswagen Group of America, Inc. (Audi) is recalling certain 2013-2017 A8, S6 Sedan, S7, S8, and 2014-2017 RS7 vehicles. The turbocharger oil supply strainer can become blocked, causing wear to the bearings due to lack of lubrication.
Consequence & remedy
Consequence: Worn bearings can cause the turbine wheel to contact the turbocharger housing or cause the shaft to break, causing an engine stall and increasing the risk of a crash.
Remedy: Dealers will replace the oil strainer and perform an oil change, free of charge. Owner notification letters were mailed August 4, 2022. Owners may contact Audi customer service at 1-800-253-2834. Audi's number for this recall is 21H7.
20V397000 · Structure:body:hood
Jul 7, 2020
Volkswagen Group of America, Inc. (Volkswagen) is recalling certain 2013-2018 Audi S8 and A8 vehicles. The seal around the engine compartment may come loose and contact hot engine components.
Consequence & remedy
Consequence: If the seal contacts hot engine components, there could be an increased risk of a fire.
Remedy: Audi will notify owners, and dealers will install a retaining plate to prevent the engine compartment seal from loosening. The recall began September 4, 2020. Owners may contact Audi customer service at 1-800-253-2834. Volkswagen's number for this recall is 51G6.
19V057000 · Fuel System, Gasoline:delivery:hoses, Lines/piping, And Fittings
Jan 28, 2019
Volkswagen Group of America, Inc. (Volkswagen) is recalling certain 2013-2016 Audi A8 and S8 vehicles. The fuel supply line for the high pressure fuel pump may become porous and leak fuel.
Consequence & remedy
Consequence: Leaking fuel, in the presence of an ignition source, increases the risk of fire.
Remedy: Audi has notified owners, and dealers will install a fuel pressure damper, free of charge. The recall began February 21, 2019. Owners may contact Audi customer service at 1-800-253-2834. Volkswagen's number for this recall is 20BM.
18V430000 · Fuel System, Gasoline:delivery:hoses, Lines/piping, And Fittings
Jun 25, 2018
Volkswagen Group of America, Inc. (Volkswagen) is recalling certain 2013-2015 Audi S8 and A8 vehicles. The fuel supply line for the high pressure fuel pump may become porous over time, resulting in a fuel leak.
Consequence & remedy
Consequence: A fuel leak in the presence of an ignition source can increase the risk of a fire.
Remedy: Audi will notify owners, and dealers will replace the fuel line, free of charge. The recall began July 20, 2018. Owners may contact Audi customer service at 1-800-253-2834. Volkswagen's number for this recall is 20AV.
13V448000 · Visibility:sun/moon Roof Assembly
Sep 23, 2013
Volkswagen Group of America, Inc. (Volkswagen) is recalling certain model year 2013-2014 Audi A8 and S8 vehicles equipped with a standard sunroof, manufactured March 12, 2013, through July 15, 2013. These vehicles are equipped with a standard sunroof glass panel that may shatter.
Consequence & remedy
Consequence: Should the sunroof's glass break while the vehicle is in use, the falling glass could injure the driver or passengers. It could also distract the driver, increasing the risk of a crash.
Remedy: Volkswagen will notify owners, and dealers will replace the sunroof glass panel, free of charge. The recall began on October 21, 2013. Owners may contact Audi of America at 1-800-822-2834. Volkwagen's number for this campaign is 60B6/1L.
Model-level recall history does not show whether a particular VIN is affected or has received a repair. Check a VIN with NHTSA ↗
NHTSA investigations
2EA22001 · Engine Stall - Turbo Failure
Opened Apr 4, 2022 · Closed May 26, 2023
Status: closed (inferred from source dates) · Engine And Engine Cooling:engine:gasoline:turbo/supercharger; Engine And Engine Cooling:engine:oil/lubrication:filter/screen
On March 29, 2021, the Office of Defects Investigation (ODI) opened a Preliminary Evaluation (PE 21-009) after the agency received 58 reports alleging engine stalling in 2013-2016MY Audi vehicle models A8, S6, S7, S8 & RS7 equipped with the 4.0L, twin-turbocharged engine. Complainants reported the vehicles would stall with no warning while driving at highway or city traffic speeds. Several of the complainants alleged an inability to restart. The complaints alleged the major contributing factor to the engine stalling was the failure of the turbochargers. The complaints cited the turbocharger failure was a result of oil starvation due to a clogged oil strainer in the turbocharger oil supply line.The location of the oil strainer in the turbocharger oil supply line is in the inner valley of the engine. It is not easily accessible, making servicing the component difficult. The oil strainer removes particles and carbon deposits from the oil before lubricating the turbochargers. Over time, if the debris is not removed from the oil strainer, it becomes clogged and prevents oil from flowing to the turbochargers. This causes the turbine bushings to run dry and overheat resulting in turbine shaft failure due to thermal stress.On April 04, 2022, PE21-009 was upgraded to an Engineering Analysis (EA22-001) to further assess the scope, frequency, and potential safety related consequences of the alleged defect. Volkswagen filed recall 22V-178 to replace the 30?m mesh oil strainer with a 90?m mesh oil strainer in the subject vehicles. VW introduced the larger mesh oil strainer into production in March of 2017 effecting the 2017-2018MY vehicles.ODI reviewed information from VW for vehicles that had the larger mesh installed in production. The data received showed, since the new oil strainer size of 90?m went into production for the 2017-2018MY, there has not been any reported incidents of turbocharger failures due to oil starvation or other failures that could be related to the larger screen mesh. In view of the recall being conducted by VW and lack of any detrimental side effect to the turbocharger caused by the larger mesh, ODI is closing this Engineering Analysis (EA). The agency reserves the right to take additional action if warranted by future circumstances.11502847,11506565,11494663,11488813,11486393,11480926,11479882,11476289,11466761 11464663,11463254,11460580,11460496,11458973,11458804,11457556,11454753,11452668 11452589,11452584,11452383,11452175,11452111,11451724,11451724,11450995,11450988 11449661,11447092,11443657,11442867,11440536,11440052,11439959,11438691,11436461 11435619,11433925,11433733,11432336,11431661,11431421,11429704,11429584,11428128 11426929,11424203,11423603,11423337,11422431,11421084,11420626,11420342,11419693 11418884,11418437,11418433,11418135,11417635,11417351,11416095,11414578,11414235 11414064,11413359,11413285,11413214,11407510,11407450,11406897,11406821,11406637 11406460,11406416,11406291,11406287,11406277,11406273,11406263,11406256,11406251 11406229,11406222,11406208,11406204,11406197,11406182,11406015,11404665,11404426 11404348,11403823,11403430,11403268,11402684,11399435,11397821,11396241,11394763 11391037
Additional source detail variants (2)
Engine And Engine Cooling:engine:gasoline:turbo/supercharger
On March 29, 2021, the Office of Defects Investigation (ODI) opened a Preliminary Evaluation (PE 21-009) after the agency received 58 reports alleging engine stalling in 2013-2016MY Audi vehicle models A8, S6, S7, S8 & RS7 equipped with the 4.0L, twin-turbocharged engine. Complainants reported the vehicles would stall with no warning while driving at highway or city traffic speeds. Several of the complainants alleged an inability to restart. The complaints alleged the major contributing factor to the engine stalling was the failure of the turbochargers. The complaints cited the turbocharger failure was a result of oil starvation due to a clogged oil strainer in the turbocharger oil supply line.The location of the oil strainer in the turbocharger oil supply line is in the inner valley of the engine. It is not easily accessible, making servicing the component difficult. The oil strainer removes particles and carbon deposits from the oil before lubricating the turbochargers. Over time, if the debris is not removed from the oil strainer, it becomes clogged and prevents oil from flowing to the turbochargers. This causes the turbine bushings to run dry and overheat resulting in turbine shaft failure due to thermal stress.On April 04, 2022, PE21-009 was upgraded to an Engineering Analysis (EA22-001) to further assess the scope, frequency, and potential safety related consequences of the alleged defect. Volkswagen filed recall 22V-178 to replace the 30?m mesh oil strainer with a 90?m mesh oil strainer in the subject vehicles. VW introduced the larger mesh oil strainer into production in March of 2017 effecting the 2017-2018MY vehicles.ODI reviewed information from VW for vehicles that had the larger mesh installed in production. The data received showed, since the new oil strainer size of 90?m went into production for the 2017-2018MY, there has not been any reported incidents of turbocharger failures due to oil starvation or other failures that could be related to the larger screen mesh. In view of the recall being conducted by VW and lack of any detrimental side effect to the turbocharger caused by the larger mesh, ODI is closing this Engineering Analysis (EA). The agency reserves the right to take additional action if warranted by future circumstances.11502847,11506565,11494663,11488813,11486393,11480926,11479882,11476289,11466761 11464663,11463254,11460580,11460496,11458973,11458804,11457556,11454753,11452668 11452589,11452584,11452383,11452175,11452111,11451724,11451724,11450995,11450988 11449661,11447092,11443657,11442867,11440536,11440052,11439959,11438691,11436461 11435619,11433925,11433733,11432336,11431661,11431421,11429704,11429584,11428128 11426929,11424203,11423603,11423337,11422431,11421084,11420626,11420342,11419693 11418884,11418437,11418433,11418135,11417635,11417351,11416095,11414578,11414235 11414064,11413359,11413285,11413214,11407510,11407450,11406897,11406821,11406637 11406460,11406416,11406291,11406287,11406277,11406273,11406263,11406256,11406251 11406229,11406222,11406208,11406204,11406197,11406182,11406015,11404665,11404426 11404348,11403823,11403430,11403268,11402684,11399435,11397821,11396241,11394763 11391037
Engine And Engine Cooling:engine:oil/lubrication:filter/screen
On March 29, 2021, the Office of Defects Investigation (ODI) opened a Preliminary Evaluation (PE 21-009) after the agency received 58 reports alleging engine stalling in 2013-2016MY Audi vehicle models A8, S6, S7, S8 & RS7 equipped with the 4.0L, twin-turbocharged engine. Complainants reported the vehicles would stall with no warning while driving at highway or city traffic speeds. Several of the complainants alleged an inability to restart. The complaints alleged the major contributing factor to the engine stalling was the failure of the turbochargers. The complaints cited the turbocharger failure was a result of oil starvation due to a clogged oil strainer in the turbocharger oil supply line.The location of the oil strainer in the turbocharger oil supply line is in the inner valley of the engine. It is not easily accessible, making servicing the component difficult. The oil strainer removes particles and carbon deposits from the oil before lubricating the turbochargers. Over time, if the debris is not removed from the oil strainer, it becomes clogged and prevents oil from flowing to the turbochargers. This causes the turbine bushings to run dry and overheat resulting in turbine shaft failure due to thermal stress.On April 04, 2022, PE21-009 was upgraded to an Engineering Analysis (EA22-001) to further assess the scope, frequency, and potential safety related consequences of the alleged defect. Volkswagen filed recall 22V-178 to replace the 30?m mesh oil strainer with a 90?m mesh oil strainer in the subject vehicles. VW introduced the larger mesh oil strainer into production in March of 2017 effecting the 2017-2018MY vehicles.ODI reviewed information from VW for vehicles that had the larger mesh installed in production. The data received showed, since the new oil strainer size of 90?m went into production for the 2017-2018MY, there has not been any reported incidents of turbocharger failures due to oil starvation or other failures that could be related to the larger screen mesh. In view of the recall being conducted by VW and lack of any detrimental side effect to the turbocharger caused by the larger mesh, ODI is closing this Engineering Analysis (EA). The agency reserves the right to take additional action if warranted by future circumstances.11502847,11506565,11494663,11488813,11486393,11480926,11479882,11476289,11466761 11464663,11463254,11460580,11460496,11458973,11458804,11457556,11454753,11452668 11452589,11452584,11452383,11452175,11452111,11451724,11451724,11450995,11450988 11449661,11447092,11443657,11442867,11440536,11440052,11439959,11438691,11436461 11435619,11433925,11433733,11432336,11431661,11431421,11429704,11429584,11428128 11426929,11424203,11423603,11423337,11422431,11421084,11420626,11420342,11419693 11418884,11418437,11418433,11418135,11417635,11417351,11416095,11414578,11414235 11414064,11413359,11413285,11413214,11407510,11407450,11406897,11406821,11406637 11406460,11406416,11406291,11406287,11406277,11406273,11406263,11406256,11406251 11406229,11406222,11406208,11406204,11406197,11406182,11406015,11404665,11404426 11404348,11403823,11403430,11403268,11402684,11399435,11397821,11396241,11394763 11391037
PE21009 · Engine Stall - Turbo Failure
Opened Mar 29, 2021 · Closed May 27, 2022
Status: closed (inferred from source dates) · Engine And Engine Cooling:engine:gasoline:turbo/supercharger; Engine And Engine Cooling:engine:oil/lubrication:filter/screen
On March 29, 2021, the Office of Defects Investigation (ODI) opened Preliminary Evaluation (PE) 21-009 after the agency received 58 reports alleging engine stalling in 2013-2016MY Audi vehicle models A8, S6, S7, S8 & RS7. The subject vehicles are equipped with 4.0L, twin-turbocharged engine. Complainants reported that the vehicles stall suddenly with no warning while driving on the highway or in city traffic. Several of the complainants alleged an inability to restart. The complaints allege the major contributing factor to the engine stalling is the failure of the turbochargers. The complaints further allege the turbocharger failure is a result of oil starvation due to a clogged oil strainer.The location of the oil strainer in the turbocharger oil supply line is in the inner valley of the engine. It is not easily accessible, making regular service difficult. The oil strainer removes dirty particles and carbon deposits from the oil before flowing to lubricate the Turbochargers. Overtime if the debris are not removed from the oil strainer, it clogs the strainer and prevents free flow of oil to the turbochargers and makes the turbine bushings to run dry and overheat which causes the turbine shaft to break due to thermal stress. In VW's response to ODI's Information Request letter, VW provided approximately 611 warranty claims with unique VINs, 70 Field Reports and 45 Consumer complaints. These reports allege engine stalling due to turbocharger failure similar to the NHTSA reports described above. To date, NHTSA has received approximately 98 allegations of stall due to turbocharger failures. The total of 824 reports shown in the table above eliminates duplicate reports received by both ODI and the manufacturer.This Preliminary Evaluation is being upgraded to an Engineering Analysis (EA) to further assess the scope, frequency, and potential safety related consequences of the alleged defect of engine stalling due to turbocharger failureThe ODI complaints cited above can be viewed at www.NHTSA.gov under the following ODI identification numbers:11452589, 11452584, 11452383, 11450995, 11450988, 11449661, 11447092, 11442867 11440536, 11440052, 11439959, 11438691, 11436461, 11435619, 11431661, 11429704 11429584, 11426929, 11424203, 11423603, 11423337, 11421084, 11420626, 11420342 11418884, 11418437, 11418433, 11417635, 11417351, 11416095, 11414235, 11413359 11413214, 11413285, 11413133, 11407510, 11407450, 11407289, 11406821, 11406416 11406291, 11406277, 11406273, 11406256, 11406251, 11406229, 11406222, 11406204 11406197, 11406182, 11404665, 11404426, 11404348, 11403430, 11403268, 11399435 11397821, 11396241, 11394763, 11391037, 11388662, 11387166, 11377446, 11363283 11354107, 11344193, 11342497, 11342360, 11340302, 11325065, 11324163, 11322168, 11321144, 11318477, 11306754, 11279429, 11268109, 11256706, 11252723, 11246579 11234853, 11234714, 11231582, 11231013, 11230589, 11229484, 11222281, 11218822 11218749, 11217604, 11209168, 11209142, 11197149, 11191243, 11175842, 11170776 11164032, 11152418.
Additional source detail variants (2)
Engine And Engine Cooling:engine:gasoline:turbo/supercharger
On March 29, 2021, the Office of Defects Investigation (ODI) opened Preliminary Evaluation (PE) 21-009 after the agency received 58 reports alleging engine stalling in 2013-2016MY Audi vehicle models A8, S6, S7, S8 & RS7. The subject vehicles are equipped with 4.0L, twin-turbocharged engine. Complainants reported that the vehicles stall suddenly with no warning while driving on the highway or in city traffic. Several of the complainants alleged an inability to restart. The complaints allege the major contributing factor to the engine stalling is the failure of the turbochargers. The complaints further allege the turbocharger failure is a result of oil starvation due to a clogged oil strainer.The location of the oil strainer in the turbocharger oil supply line is in the inner valley of the engine. It is not easily accessible, making regular service difficult. The oil strainer removes dirty particles and carbon deposits from the oil before flowing to lubricate the Turbochargers. Overtime if the debris are not removed from the oil strainer, it clogs the strainer and prevents free flow of oil to the turbochargers and makes the turbine bushings to run dry and overheat which causes the turbine shaft to break due to thermal stress. In VW's response to ODI's Information Request letter, VW provided approximately 611 warranty claims with unique VINs, 70 Field Reports and 45 Consumer complaints. These reports allege engine stalling due to turbocharger failure similar to the NHTSA reports described above. To date, NHTSA has received approximately 98 allegations of stall due to turbocharger failures. The total of 824 reports shown in the table above eliminates duplicate reports received by both ODI and the manufacturer.This Preliminary Evaluation is being upgraded to an Engineering Analysis (EA) to further assess the scope, frequency, and potential safety related consequences of the alleged defect of engine stalling due to turbocharger failureThe ODI complaints cited above can be viewed at www.NHTSA.gov under the following ODI identification numbers:11452589, 11452584, 11452383, 11450995, 11450988, 11449661, 11447092, 11442867 11440536, 11440052, 11439959, 11438691, 11436461, 11435619, 11431661, 11429704 11429584, 11426929, 11424203, 11423603, 11423337, 11421084, 11420626, 11420342 11418884, 11418437, 11418433, 11417635, 11417351, 11416095, 11414235, 11413359 11413214, 11413285, 11413133, 11407510, 11407450, 11407289, 11406821, 11406416 11406291, 11406277, 11406273, 11406256, 11406251, 11406229, 11406222, 11406204 11406197, 11406182, 11404665, 11404426, 11404348, 11403430, 11403268, 11399435 11397821, 11396241, 11394763, 11391037, 11388662, 11387166, 11377446, 11363283 11354107, 11344193, 11342497, 11342360, 11340302, 11325065, 11324163, 11322168, 11321144, 11318477, 11306754, 11279429, 11268109, 11256706, 11252723, 11246579 11234853, 11234714, 11231582, 11231013, 11230589, 11229484, 11222281, 11218822 11218749, 11217604, 11209168, 11209142, 11197149, 11191243, 11175842, 11170776 11164032, 11152418.
Engine And Engine Cooling:engine:oil/lubrication:filter/screen
On March 29, 2021, the Office of Defects Investigation (ODI) opened Preliminary Evaluation (PE) 21-009 after the agency received 58 reports alleging engine stalling in 2013-2016MY Audi vehicle models A8, S6, S7, S8 & RS7. The subject vehicles are equipped with 4.0L, twin-turbocharged engine. Complainants reported that the vehicles stall suddenly with no warning while driving on the highway or in city traffic. Several of the complainants alleged an inability to restart. The complaints allege the major contributing factor to the engine stalling is the failure of the turbochargers. The complaints further allege the turbocharger failure is a result of oil starvation due to a clogged oil strainer.The location of the oil strainer in the turbocharger oil supply line is in the inner valley of the engine. It is not easily accessible, making regular service difficult. The oil strainer removes dirty particles and carbon deposits from the oil before flowing to lubricate the Turbochargers. Overtime if the debris are not removed from the oil strainer, it clogs the strainer and prevents free flow of oil to the turbochargers and makes the turbine bushings to run dry and overheat which causes the turbine shaft to break due to thermal stress. In VW's response to ODI's Information Request letter, VW provided approximately 611 warranty claims with unique VINs, 70 Field Reports and 45 Consumer complaints. These reports allege engine stalling due to turbocharger failure similar to the NHTSA reports described above. To date, NHTSA has received approximately 98 allegations of stall due to turbocharger failures. The total of 824 reports shown in the table above eliminates duplicate reports received by both ODI and the manufacturer.This Preliminary Evaluation is being upgraded to an Engineering Analysis (EA) to further assess the scope, frequency, and potential safety related consequences of the alleged defect of engine stalling due to turbocharger failureThe ODI complaints cited above can be viewed at www.NHTSA.gov under the following ODI identification numbers:11452589, 11452584, 11452383, 11450995, 11450988, 11449661, 11447092, 11442867 11440536, 11440052, 11439959, 11438691, 11436461, 11435619, 11431661, 11429704 11429584, 11426929, 11424203, 11423603, 11423337, 11421084, 11420626, 11420342 11418884, 11418437, 11418433, 11417635, 11417351, 11416095, 11414235, 11413359 11413214, 11413285, 11413133, 11407510, 11407450, 11407289, 11406821, 11406416 11406291, 11406277, 11406273, 11406256, 11406251, 11406229, 11406222, 11406204 11406197, 11406182, 11404665, 11404426, 11404348, 11403430, 11403268, 11399435 11397821, 11396241, 11394763, 11391037, 11388662, 11387166, 11377446, 11363283 11354107, 11344193, 11342497, 11342360, 11340302, 11325065, 11324163, 11322168, 11321144, 11318477, 11306754, 11279429, 11268109, 11256706, 11252723, 11246579 11234853, 11234714, 11231582, 11231013, 11230589, 11229484, 11222281, 11218822 11218749, 11217604, 11209168, 11209142, 11197149, 11191243, 11175842, 11170776 11164032, 11152418.