THE CAR KEYS WOULD NOT OPEN THE CAR DOORS OR THE TRUNK
2006 Mercedes Benz ML350
Owner reports · Recalls · Investigations
More warning signs than most ML350 years
Owner complaints for the 2006 Mercedes Benz ML350 are substantially higher than the model-year median of 51.
About this comparison →How this year compares
Owner complaints by model year
Compare all ML350 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
137 reports with mileage · 35 unknown
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.
- Power Train. Review the 43 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Engine. Review the 36 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Electrical System. Review the 29 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
NHTSA owner reports · September 18, 2026 snapshot.
What owners actually said
172 reportsSETTLEMENT ABOUT DEFECTIVE GEARS WEAR OUT PREMATURELY, EXCESSIVELY, AND WITHOUT WARNING, CAUSING THE VEHICLE TO MALFUNCTION, THE 'CHECK ENGINE LIGHT' TO REMAIN ILLUMINATED, AND THE VEHICLE TO HAVE SYMPTOMS SUCH AS MISFIRING OR CATASTROPHIC STOPS. MAJEED SEIFI, ET AL. V. MERCEDES BENZ USA LLC CASE NO. 3:12-CV-05493 U.S. DISTRICT …
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SETTLEMENT ABOUT DEFECTIVE GEARS WEAR OUT PREMATURELY, EXCESSIVELY, AND WITHOUT WARNING, CAUSING THE VEHICLE TO MALFUNCTION, THE 'CHECK ENGINE LIGHT' TO REMAIN ILLUMINATED, AND THE VEHICLE TO HAVE SYMPTOMS SUCH AS MISFIRING OR CATASTROPHIC STOPS. MAJEED SEIFI, ET AL. V. MERCEDES BENZ USA LLC CASE NO. 3:12-CV-05493 U.S. DISTRICT COURT FOR THE NORTHERN DISTRICT OF CALIFORNIA. MAJEED SEIFI, ALLEGED A DEFECT IN BALANCE SHAFT SPROCKETS IN (V-6) ENGINES AND IDLE GEARS IN (V-8) ENGINES MODEL YEAR 2005-2007 MB THAT CAUSES THE GEARS TO WEAR PREMATURELY. PLAINTIFFS CONTEND ("MBUSA") HAD A DUTY TO DISCLOSE THIS INFORMATION TO CONSUMERS AT THE TIME THEY PURCHASED THEIR VEHICLES. BASED ON CONDUCT, CLAIMS FOR VIOLATIONS OF THE NEW JERSEY CONSUMER FRAUD ACT, CALIFORNIA'S CONSUMER LEGAL REMEDIES ACT AND UNFAIR COMPETITION LAW.MBUSA HAS AGREED TO OFFER TO SETTLEMENT CLASS MEMBERS TO MAKE QUALIFIED REPAIRS MERCEDES BENZ ENGINE DEFECT CLASS ACTION SETTLEMENT. DEFECTIVE GEARS WEAR OUT PREMATURELY, EXCESSIVELY, WITHOUT WARNING, THE VEHICLE MALFUNCTIONS, THE 'CHECK ENGINE LIGHT' REMAINS ILLUMINATED, AND THE CAR MISFIRES OR STOPS. TOLD IT WILL TAKE $7,000.00 TO FIX THE PROBLEM. I HAVE ALL MY RECORDS. SPENT $5,000 IN 2015 FOR REPAIRS ALONE. PAID TO OWN A MB TO GET FORTY THOUSAND MILES OUT OF IT BEFORE IT NEEDS MOTOR WORK. MY ML350 ENGINE LIGHT SHOULD NOT BE ILLUMINATING AT <40,000 MILES ITS A DEFECTIVE MOTOR. CLEARLY A MANUFACTURE FACTORY DEFECT. $7000.00, TO GET A CHECK ENGINE LIGHT OFF: MAJEED SEIFI,ET AL. V. MERCEDES BENZ PROVES MBUSA KNOWS OF THIS PROBLEM. KNOWN MB 2006 ML350 INTERNAL PROBLEM (FACTORY DEFECT, LEMON ETC.) THAT WAS NOT DISCLOSED TO ME. NOT FROM NORMAL WEAR AND TEAR, AND FROM NO FAULT OF MY OWN.
WHILE DRIVING AT MOST ANY SPEED,TRANSMISSION PERIODICALLY GOES INTO NO GEAR OR A SINGLE GEAR (LOW OR A HIGHER GEAR) AND 'LIMP MODE' WITHOUT WARNING....SOMETIMES A "CHECK ENGINE" LIGHT. VERY SCARY ESPECIALLY IN TRAFFIC ON THE FREEWAY. BOUGHT THE VEHICLE EARLIER THIS YEAR WITH 60,000 MILES ON IT...I AM 72 AND WIFE IS 71...SH…
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WHILE DRIVING AT MOST ANY SPEED,TRANSMISSION PERIODICALLY GOES INTO NO GEAR OR A SINGLE GEAR (LOW OR A HIGHER GEAR) AND 'LIMP MODE' WITHOUT WARNING....SOMETIMES A "CHECK ENGINE" LIGHT. VERY SCARY ESPECIALLY IN TRAFFIC ON THE FREEWAY. BOUGHT THE VEHICLE EARLIER THIS YEAR WITH 60,000 MILES ON IT...I AM 72 AND WIFE IS 71...SHE IS AFRAID TO DRIVE IT BECAUSE OF THE UNCERTAINTY OF THE DRIVE TRAIN. I FINALLY TOOK IT TO MERCEDES BENZ AS THE WOULD NOT SELL MY MY INDEPENDENT MECHANIC THE PARTS TO REPAIR PROBLEM. MERCEDES SAYS THAT I NEED TO HAVE THE 722.9 TRANSMISSION VALVE BODY REPLACED AT $3,000 PERIOD. I HAVE READ OF A MYRIAD OF SIMILAR PROBLEMS WITH OTHER OWNERS OF CARS WITH THIS TYPE OF TRANSMISSION....EVEN CLASS ACTION SUITS. I BELIEVE THAT THIS IS A VERY DANGEROUS CONDITION THAT MUST BE RESOLVED AND REPAIRED BY THE MANUFACTURER. I EVEN CALLED MERCEDES BENZ OF NORTH AMERICA AND THEIR REPRESENTATIVE SAID HE KNEW OF NO PROBLEMS WITH THIS MODEL OF TRANSMISSION. I ALSO READ THAT THEY ARE NOT CHANGING ANY PARTS....JUST REPROGRAMMING THE TRANSMISSION TO NOT GO INTO LIMP MODE AND NOT ACTIVATING THE CHECK ENGINE LIGHT.....HOW CAN I INSURE THAT MY VEHICLE WILL BE REPAIRED CORRECTLY AND BE SAFE TO DRIVE?
TAKATA RECALL I WASN'T AWARE OF BIG ISSUE WITH DEFECTIVE BALANCE SHIFT GEARS UNTIL I COULDN'T PASS EMISSION TEST DO TO CHECK ENGINE BECAUSE OF PROBLEM WITH SHIFT GEAR. I COULDN'T REGISTER CAR AND MERCEDES DEALER ASKED FOR OVER $6000 FOR REPAIR! THEN I DID RESEARCH AND FOUND OUT I AM NOT THE ONLY ONE. HTTP://CLASSACTIONLAWSUITSI…
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TAKATA RECALL I WASN'T AWARE OF BIG ISSUE WITH DEFECTIVE BALANCE SHIFT GEARS UNTIL I COULDN'T PASS EMISSION TEST DO TO CHECK ENGINE BECAUSE OF PROBLEM WITH SHIFT GEAR. I COULDN'T REGISTER CAR AND MERCEDES DEALER ASKED FOR OVER $6000 FOR REPAIR! THEN I DID RESEARCH AND FOUND OUT I AM NOT THE ONLY ONE. HTTP://CLASSACTIONLAWSUITSINTHENEWS.COM/CLASS-ACTION-LAWSUIT-COMPLAINTS/MERCEDES-BENZ-CLASS-ACTION-LAWSUIT-COMPLAINT-FILED-OVER-ALLEGEDLY-DEFECTIVE-BALANCE-SHIFT-GEARS-IN-MERCEDES-M272-ENGINES-IDLE-GEARS-IN-MERCEDES-M273-ENGINES/ MERCEDES SHOULD TAKE FULL RESPONSIBILITY FOR THIS MATTER!
DRIVING 45MPH APPROACHING A STOP, I HIT THE BRAKES AND THE CAR STARTED TO SLOW. THEN THE CAR LURCHED AND ACCELERATED BY ITS SELF. I PUSHED THE BRAKE HARDER AND TRIED TO PUMP IT BUT NOTHING SLOWED THE VEHICLE. THE BRAKES FELT AS IF THEY WERE NOT WORKING AT ALL. VEHICLE CRASHED AT ABOUT 55MPH AND ROLLED SEVERELY INJURING THE DRIVE…
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DRIVING 45MPH APPROACHING A STOP, I HIT THE BRAKES AND THE CAR STARTED TO SLOW. THEN THE CAR LURCHED AND ACCELERATED BY ITS SELF. I PUSHED THE BRAKE HARDER AND TRIED TO PUMP IT BUT NOTHING SLOWED THE VEHICLE. THE BRAKES FELT AS IF THEY WERE NOT WORKING AT ALL. VEHICLE CRASHED AT ABOUT 55MPH AND ROLLED SEVERELY INJURING THE DRIVER. NO ADVERSE WEATHER CONDITIONS, 77 DEGREES OUT, DRIVING ON A MILITARY INSTALLATION ROAD.
HEADLIGHT WIRING INSULATION IS CRACKING LEAVING THE WIRE EXPOSED. IF THE WIRES TOUCH IT COUID SHORT CIRCUIT THE ELECTRICAL SYSTEM OR CAUSE A FIRE. MY VEHICLE WAS STATIONARY WHEN I NOTICED THE PROBLEM.
MY CAR SUDDENLY LOST POWER IN THE HIGHWAY, AND DIDN'T WANT TO ACCELERATE,CAUSING CAR TO HIGH RPM REV,GOING INTO LIMP MODE AND NOT ACCELERATE, ALMOST CAUSING MY FAMILY AND TO HAVE A SERIOUS ACCIDENT.VEHICLE WAS DIAGNOSED BY A SHOP WHICH STATED MY SPEED SENSOR CONDUCTOR PLATE IS DEFECTIVE...UPON DOING RESEARCH, I HAVE NOTICED THAT…
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MY CAR SUDDENLY LOST POWER IN THE HIGHWAY, AND DIDN'T WANT TO ACCELERATE,CAUSING CAR TO HIGH RPM REV,GOING INTO LIMP MODE AND NOT ACCELERATE, ALMOST CAUSING MY FAMILY AND TO HAVE A SERIOUS ACCIDENT.VEHICLE WAS DIAGNOSED BY A SHOP WHICH STATED MY SPEED SENSOR CONDUCTOR PLATE IS DEFECTIVE...UPON DOING RESEARCH, I HAVE NOTICED THAT THIS IS COMMON DANGEROUS ISSUE ON THE 06 MERCEDES ML MODELS..MERCEDES EVEN HAS A CLASS ACTION SUITE AGAINST THEM DUE TO THIS ISSUE..
RUSTED AND LEAKING BREAK LINES ABOVE GAS TANK OF THE DRIVERS SIDE. RUSTED ALL THE ENGINE AREA. IT HAS HOLES JUST RIGHT ABOVE THE GAS TANK.
RUSTED STEEL BREAK LINES THAT TAKES BREAK FLUID TO REAR FROM THE ENGINE COMPANTMENT
THERE IS A SYSTEMIC PROBLEM WITH THE MERCEDES BENZ 7G TRONIC 722.9 TRANSMISSION CONTROL MODULE WHICH CAUSES THE VEHICLE'S TRANSMISSION TO, WITHOUT NOTICE, FAIL TO SHIFT OUT OF 2ND GEAR WHICH CREATES A SERIOUS SAFETY HAZARD WHILE DRIVING INCLUDING ENTERING THE FREEWAY AND ATTEMPTING TO MERGE INTO TRAFFIC. THE ISSUE IS WELL DOCUM…
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THERE IS A SYSTEMIC PROBLEM WITH THE MERCEDES BENZ 7G TRONIC 722.9 TRANSMISSION CONTROL MODULE WHICH CAUSES THE VEHICLE'S TRANSMISSION TO, WITHOUT NOTICE, FAIL TO SHIFT OUT OF 2ND GEAR WHICH CREATES A SERIOUS SAFETY HAZARD WHILE DRIVING INCLUDING ENTERING THE FREEWAY AND ATTEMPTING TO MERGE INTO TRAFFIC. THE ISSUE IS WELL DOCUMENTED ON A NUMBER OF WEBSITE ON THE INTERNET WHICH INCLUDES SUPPORT GROUPS INCLUDING ONE ADVOCATING AND SOLICITING A CLASS ACTION SUIT IN THE STATE OF CA. THE NHTSA NEEDS TO LOOK INTO THIS MANUFACTURER'S DEFECT SO AS TO PREVENT SERIOUS INJURY INCLUDING THE LOSS OF LIFE. MB USA IS VERY MUCH AWARE OF THE ISSUE WHICH REQUIRES THE REPLACEMENT OF TRANSMISSION CONTROL MODULE (TCM). ADDING INSULT TO INJURY, MB RESTRICTS THE SALE OF THE TCM SO THAT THE REPAIR CAN ONLY BE MADE AT AN AUTHORIZED MB DEALERSHIP ADDING TO THE CONSUMER'S COST TO REPAIR THE VEHICLE. THE ESTIMATE REPAIR COST IS $1,500 AT THE DEALERSHIP. COST ESTIMATES OUTSIDE OF THE DEALERSHIP, IF THE ITEM WAS ABLE TO BE PURCHASED, IS LESS THAN HALF THAT. I WAS NEARLY REAR ENDED BY A TRACTOR TRAILER WHILE ENTERING I-91 IN CT JUST LAST WEEK WHEN THE VEHICLE UNEXPECTEDLY WENT INTO WHAT MB CALLS "LIMP MODE" WHEN THE CHECK ENGINE LIGHT COMES ON AND THE VEHICLE SPEED IS RESTRICTED TO 30 MPH IMMEDIATELY. THIS NEAR DEATH EXPERIENCE WAS QUITE ALARMING. I CONTACTED MB USA AND THEY DENIED ANY KNOWLEDGE THAT THE PROBLEM WAS AT ALL DUE TO DEFECTIVE MANUFACTURING. AS AN INDIVIDUAL CONSUMER WE HAVE NO RIGHTS IN THIS MATTER TO ELIMINATE THIS MANUFACTURERS SAFETY DEFECT WHILE MB RESTRICTS AND MONOPOLIZES THE REPAIR OF A PROBLEM THAT THEY CREATED. THE FAILURE OF THIS PART CAN HAPPEN AT ANY TIME REGARDLESS OF VEHICLE MILES. *TR
Official recalls
224V298000 · Service Brakes, Hydraulic:power Assist:vacuum
Apr 26, 2024
Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2006-2012 ML, GL, and R-Class vehicles. Please refer to MBUSA's recall report for specific vehicle model details. Moisture may accumulate and cause corrosion in the brake booster housing unit, which can result in reduced brake performance or brake failure.
Consequence & remedy
Consequence: Reduced brake performance or brake failure can increase the risk of a crash.
Remedy: Owners are advised not to drive their vehicles until the remedy has been performed. Dealers will remove the rubber sleeve, inspect the brake booster, and as necessary, replace the brake booster. All repairs will be performed free of charge. Owner notification letters were mailed on May 24, 2024. Owners may contact MBUSA customer service at 1-800-367-6372. MMUSA's number for this recall is 2024050001/2. This recall is an expansion of previous recall number 22V-315.
22V315000 · Service Brakes, Hydraulic:power Assist:vacuum
May 9, 2022
Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2006-2012 ML-Class, GL-Class, and R-Class vehicles. Please refer to MBUSA's recall report for specific vehicle model details. Moisture may accumulate and cause corrosion in the brake booster housing unit, which can result in reduced brake performance or brake failure.
Consequence & remedy
Consequence: Reduced brake performance or brake failure can increase the risk of a crash.
Remedy: Owners are advised not to drive their vehicles until the remedy has been performed. Dealers will remove the rubber sleeve, inspect the brake booster, and as necessary, replace the brake booster. All repairs will be performed free of charge. Owner notification letters were mailed June 30, 2022. Owners may contact MBUSA customer service at 1-800-367-6372. MBUSA's numbers for this recall are 2022050014, 2022050015 2022090006, & 2022090007.
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
0No exact-year investigations in this snapshot.
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