← New search

2006 MERCEDES-BENZ R350

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

Other model years Selected year
Compare all R350 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

89 reports with mileage · 10 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.

  • Suspension. Review the 26 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Engine. Review the 17 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Engine And Engine Cooling. Review the 16 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →

NHTSA owner reports · September 18, 2026 snapshot.

2 crash reports10 fire reports3 injury reports

Engine complaints

17 reports
Clear category filter
Mileage unknown · Jun 20, 2022
Engine

My car has stalled several times, either when I am driving, or when I stop at a traffic light. Rough idling and/or running when stopped at a red light or driving at speeds that wouldn’t normally be an issue. Engine stalling or misfiring, and car sometimes have trouble starting up. Loud rattling or vibrating noises from the engin…

Read full complaint

My car has stalled several times, either when I am driving, or when I stop at a traffic light. Rough idling and/or running when stopped at a red light or driving at speeds that wouldn’t normally be an issue. Engine stalling or misfiring, and car sometimes have trouble starting up. Loud rattling or vibrating noises from the engine. The check engine light is turned on. I took it to Mercedes Benz Dealership in Brooklyn, NY and was told it is a Balance Shaft problem, and they told me it could cost me about $9,000.00. Further research informs me that the problem should not be ignored, nor repair put off. Also, that failure of the balance shaft leaves the inner components of the engine unsecured and therefore will ultimately result in damage to the engine if left unchecked. Also, that driving at high speeds for long periods can agitate the problem even further due to the constant vibrations without a proper securing mechanism. As a result, I parked my car for several months, since I cannot afford the amount they quoted. In essence, I cannot even enjoy the car I bought.

NHTSA ODI #11470159

98,000 miles · Jul 16, 2020
EngineUnknown Or Other

AS I WAS DRIVING DOWN THE HIGHWAY I PRESSED ON GAS PEDAL AND VEHICLE MADE A VERY LOUD CHAIN WHINE NOISE AND IT CUT OFF IN THE MIDDLE OF HIGHWAY AND NEVER STARTED BACK UP.

NHTSA ODI #11339768

Mileage unknown · Apr 7, 2018
Engine

TAKATA RECALL. I PURCHASED MY 2006 MERCEDES R350 IN 2016 WITH OVER 100K MILES ON IT. WITH THE ENGINE LIGHT ALREADY ON. I USED A SCANNER TOOL FOR AN ACCURATE DIAGNOSIS. AS IT STATED TWO ISSUES. A CRANK SHAFT SENSOR/ CAM SHAFT SENSOR WAS NEEDED. SO I DECIDED AGAINST MY BETTER JUDGEMENT TO FINALIZE THE PURCHASE ANYWAY. NEEDLESS TO …

Read full complaint

TAKATA RECALL. I PURCHASED MY 2006 MERCEDES R350 IN 2016 WITH OVER 100K MILES ON IT. WITH THE ENGINE LIGHT ALREADY ON. I USED A SCANNER TOOL FOR AN ACCURATE DIAGNOSIS. AS IT STATED TWO ISSUES. A CRANK SHAFT SENSOR/ CAM SHAFT SENSOR WAS NEEDED. SO I DECIDED AGAINST MY BETTER JUDGEMENT TO FINALIZE THE PURCHASE ANYWAY. NEEDLESS TO SAY, AFTER I CHANGED THE SENSORS THE PROBLEM STILL REMAINS. AFTER DOING A LOT OF RESEARCH AND SPENT UNNECESSARY MONEY, IT WAS BROUGHT TO MY ATTENTION THAT THE PROBLEM IS IN FACT A FAULTY BALANCE SHAFT INSIDE OF THE ENGINE. DUE TO A MANUFACTURING DEFAULT. THAT WAS COVERED MY MERCEDES IN A RECALL AT ONE POINT BEFORE I HAD PURCHASED THE VEHICLE. FOR SOMETHING AS SERIOUS AS A DEFECTED PART IN A MOTOR SHOULD NOT BE LIMITED TO WHEN YOU PURCHASE THE VEHICLE, BUT WHENEVER IT IS BROUGHT TO THEIR ATTENTION IT SHOULD BE REPAIRED WITHOUT HESITATION SINCE THIS IS A MANUFACTURING DEFAULT AND NOT SOMETHING THAT WAS DONE BY ANY PREVIOUS OWNERS. I WOULD LIKE TO KNOW WHAT IF ANYTHING CAN BE DONE TO HELP ME RESOLVE THIS ISSUE AT HAND. THANKS IN ADVANCE.

NHTSA ODI #11083807

99,000 miles · Feb 24, 2017
Engine

BALANCE SHAFT GEAR DEFECTIVE APPARENTLY MERCEDES HAS BEEN AWARE OF THIS PROBLEM, CLASS ACTION SUITS HAVE BEEN FILED- NO RECALL YET. I PLAN TO CALL MERCEDES DEALER TOMORROW- DO NOT ANTICIPATE ANY HELP ON THEIR PART - IF THAT'S THE CASE WILL TRY TO JOIN CLASS ACTION SUIT AS THIS IS A KNOWN AND VERY COSTLY -(THOUSANDS OF DOLLARS) P…

Read full complaint

BALANCE SHAFT GEAR DEFECTIVE APPARENTLY MERCEDES HAS BEEN AWARE OF THIS PROBLEM, CLASS ACTION SUITS HAVE BEEN FILED- NO RECALL YET. I PLAN TO CALL MERCEDES DEALER TOMORROW- DO NOT ANTICIPATE ANY HELP ON THEIR PART - IF THAT'S THE CASE WILL TRY TO JOIN CLASS ACTION SUIT AS THIS IS A KNOWN AND VERY COSTLY -(THOUSANDS OF DOLLARS) PROBLEM FOR NUMEROUS MB VEHICLES- MANY CLASSES FROM 2007 -2011. MERCEDES BENZ WAS APPARENTLY AWARE OF THIS DEFECT WHEN I PURCHASED MY VEHICLE (USED) FROM LOCAL MB DEALER HERE IN NY 2009 AS A PRE OWNED CERTIFIED VEHICLE, WHY WAS I NOT MADE AWARE OF THIS ISSUE THAT MERCEDES KNOWINGLY KNEW AND COME TO FIND OUT A CLASS ACTION LAWSUIT WAS FILED. THE NHTSA NEED S TO LOOK INTO THIS MANY COMPLAINTS HAVE BEEN FILED, MERCEDES SERVICE TECHS WERE MADE AWARE OF THIS ISSUE BUT THEY WERE NOT INSTRUCTED TO LET CUSTOMERS BE KNOWN OF THIS WHEN CARS WERE BROUGHT IN FOR SERVICE. PLEASE LOOK INTO THIS AND RECALLS MUST BE PREFORMED

NHTSA ODI #10956705

100,000 miles · Jul 19, 2016
Engine

THIS IS A WELL DOCUMENTED ISSUE BUT MERCEDES BENZ REFUSES TO ACKNOWLEDGE THE BALANCE SHAFT AS A DEFECT AND ROAD SAFETY HAZARD. UNFORTUNATELY IT'S GOING TO TAKE SOMEONE'S ENGINE FALLING A PART AT HIGH SPEED CAUSING AN ACCIDENT BEFORE SOMEONE WILL DO SOMETHING WHICH IS TERRIBLE. MERCEDES-BENZ BALANCE SHAFT PROBLEMS AND HOW …

Read full complaint

THIS IS A WELL DOCUMENTED ISSUE BUT MERCEDES BENZ REFUSES TO ACKNOWLEDGE THE BALANCE SHAFT AS A DEFECT AND ROAD SAFETY HAZARD. UNFORTUNATELY IT'S GOING TO TAKE SOMEONE'S ENGINE FALLING A PART AT HIGH SPEED CAUSING AN ACCIDENT BEFORE SOMEONE WILL DO SOMETHING WHICH IS TERRIBLE. MERCEDES-BENZ BALANCE SHAFT PROBLEMS AND HOW TO CHECK YOUR CAR. BALANCE SHAFT MERCEDES V6 AND V8 PROBLEMS MERCEDES-BENZ V6 AND V8 ENGINES HAD TIMING CHAIN PROBLEMS CAUSED BY BALANCE SHAFT AND IDLER GEAR FAILURES. MERCEDES PRODUCED CERTAIN MODELS WITH DEFECTIVE GEARS IN THEIR BALANCE SHAFTS (M272 ENGINES) OR WITH DEFECTIVE IDLE GEARS ( M273 ENGINES). THESE FAULTY GEARS WEAR OUT PREMATURELY, EXCESSIVELY, AND WITHOUT WARNING, CAUSING THE VEHICLE TO MALFUNCTION, THE 'CHECK ENGINE LIGHT' TO REMAIN ILLUMINATED, AND THE VEHICLE TO MISFIRE OR STOP DRIVING.

NHTSA ODI #10885935

88,000 miles · Dec 23, 2015
Engine

VEHICLE CRANKS BUT WILL NOT START, DEALER FIRST REPLACED FUEL PUMP ($1500),THEN WHEN CAME TO PICKUP VEHICLE WOULD NOT START AT DEALER, REPLACED STARTER(NO CHARGE), DROVE FOR 2 WEEKS ISSUE CAME BACK, TOOK TO DEALER , THEY KEPT IT FOR 20 DAYS AND SAID SOME SORT OF CONTROL MODULE, BUT WHO KNOWS. ITS BEEN 15 MONTHS AND CAR JUST STOP…

Read full complaint

VEHICLE CRANKS BUT WILL NOT START, DEALER FIRST REPLACED FUEL PUMP ($1500),THEN WHEN CAME TO PICKUP VEHICLE WOULD NOT START AT DEALER, REPLACED STARTER(NO CHARGE), DROVE FOR 2 WEEKS ISSUE CAME BACK, TOOK TO DEALER , THEY KEPT IT FOR 20 DAYS AND SAID SOME SORT OF CONTROL MODULE, BUT WHO KNOWS. ITS BEEN 15 MONTHS AND CAR JUST STOPPED SMACK IN MIDDLE OF FREEWAY AT 60 MILES PER HOUR AND WOULD NOT START. CURRENTLY AT DEALER.

NHTSA ODI #10811956

88,000 miles · Dec 23, 2015
Electrical SystemEngineFuel/propulsion SystemFire

WIRING FROM ENGINE HARNESS TO FUEL PUMP BURNT ON FREEWAY , ENGINE STALLED AND SHUT DOWN, COULD NOT START BACK UP IN MIDDLE OF I5 FREEWAY. REPAIRS ARE AMOUNTING TO $4000. COULD HAVE BURNT ENTIRE VEHICLE AND AFTER READING NUMEROUS COMPLAINTS WITH EXACT SAME PROBLEM SOMETHING NEEDS TO BE DONE.

NHTSA ODI #10811951

130,000 miles · Aug 6, 2015
EngineSteering

TL* THE CONTACT OWNS A 2006 MERCEDES BENZ R350. THE CONTACT STATED THAT WHILE REVERSING, THE VEHICLE MADE AN ABNORMAL NOISE AS THE STEERING WHEEL SEIZED AND SMOKE STARTED TO EMIT FROM UNDER THE HOOD. THE CONTACT TURNED THE ENGINE OFF BUT THE VEHICLE FAILED TO RESTART. THE VEHICLE WAS TOWED TO AN INDEPENDENT MECHANIC. THE TECHN…

Read full complaint

TL* THE CONTACT OWNS A 2006 MERCEDES BENZ R350. THE CONTACT STATED THAT WHILE REVERSING, THE VEHICLE MADE AN ABNORMAL NOISE AS THE STEERING WHEEL SEIZED AND SMOKE STARTED TO EMIT FROM UNDER THE HOOD. THE CONTACT TURNED THE ENGINE OFF BUT THE VEHICLE FAILED TO RESTART. THE VEHICLE WAS TOWED TO AN INDEPENDENT MECHANIC. THE TECHNICIAN DIAGNOSED THAT THE POWER STEERING PUMP, SERPENTINE BELT AND IDLER PULLEY NEEDED TO BE REPLACED. THE VEHICLE WAS REPAIRED. HOWEVER, THE CONTACT STATED THAT THE CHECK ENGINE LIGHT STAYED ON. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 130,000.

NHTSA ODI #10746864

92,105 miles · May 13, 2015
EngineSteering

WHILE I WAS DRIVING, I LOST POWER STEERING. I HAD TO PULL OVER AND SAW THAT MY ENGINE BELT WAS OFF MY ENGINE AND A PULLEY CAME OFF MY ENGINE. THIS IS AFTER THE DEALERSHIP HAD ALREADY REPLACED MY BELT JUST LESS THAN 10,000 BEFORE. IT WAS A GOOD THING THAT NO ONE WAS HURT. IT SEEMS LIKE THIS ENGINE IS DEFECTIVE AND MERCEDES BENZ…

Read full complaint

WHILE I WAS DRIVING, I LOST POWER STEERING. I HAD TO PULL OVER AND SAW THAT MY ENGINE BELT WAS OFF MY ENGINE AND A PULLEY CAME OFF MY ENGINE. THIS IS AFTER THE DEALERSHIP HAD ALREADY REPLACED MY BELT JUST LESS THAN 10,000 BEFORE. IT WAS A GOOD THING THAT NO ONE WAS HURT. IT SEEMS LIKE THIS ENGINE IS DEFECTIVE AND MERCEDES BENZ REFUSES TO FIX THE PROBLEM. I'M AFRAID THAT SOMEONE WHO DOES NOT KNOW HOW TO HANDLE THE LOSS OF POWER STEERING WILL BE IN A FATAL ACCIDENT.

NHTSA ODI #10716162

91,000 miles · May 6, 2015
Engine

MY ENGINE LIGHT CAME ON - TOOK THE CAR FOR REPAIR AND WAS TOLD P CODES 0016 AND 0017 WERE COMING ON MEANING THERE WAS A DEFECTIVE GEAR IN THE BALANCE SHAFT WHICH MB KNOWS ABOUT AND REFUSES TO TAKE RESPONSIBILITY FOR. IT WOULD COST $6000 TO FIX. I BEGAN TO LOOK ON THE INTERNET TO SEE IF ANY RECALLS OR ISSUES LIKE MINE HAVE OCCU…

Read full complaint

MY ENGINE LIGHT CAME ON - TOOK THE CAR FOR REPAIR AND WAS TOLD P CODES 0016 AND 0017 WERE COMING ON MEANING THERE WAS A DEFECTIVE GEAR IN THE BALANCE SHAFT WHICH MB KNOWS ABOUT AND REFUSES TO TAKE RESPONSIBILITY FOR. IT WOULD COST $6000 TO FIX. I BEGAN TO LOOK ON THE INTERNET TO SEE IF ANY RECALLS OR ISSUES LIKE MINE HAVE OCCURRED WITH OTHERS AND I FOUND I WAS NOT ALONE AND A CLASS ACTION LAWSUIT HAD BEEN FILED. I WANT TO FILE A FORMAL COMPLAINT AS MB SHOULD BE HELP ACCOUNTABLE FOR KNOWINGLY PROVIDING FAULTY PRODUCTS TO CUSTOMERS - THEY NEED TO BE LIABLE TO RECALL AND FIX EVERY ENGINE AFFECTED BY THIS!! THE US GOVERNMENT NEEDS TO PROTECT CONSUMERS BETTER THAN THIS! *TR

NHTSA ODI #10714952

Official recalls

2

24V298000 · 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

0

No exact-year investigations in this snapshot.