RoadVitals

2006 Mercedes-Benz CLK350 Fuel system Problems

Owner-reported complaints naming the fuel system system, filed with NHTSA

Data refreshed

Fuel system reportsComplaints are reports submitted to NHTSA by owners and drivers. NHTSA does not verify most reports before publishing them, and a complaint does not establish that a defect exists. Volume is influenced by how many of a vehicle were sold, how long it has been on the road, and how much attention an issue has received.
11
Latest Dec 26, 2017
Share of all reportsThis category as a share of every owner report on file for this model year. One report can name more than one component, so the categories overlap.
30%
of 37 total
Crash or fire reportedReports in this category whose submitter recorded that a crash or a fire occurred. The reporter's own answer on the NHTSA form, not a verified finding.
0
Injuries or deaths reportedTotals the submitters entered on their own reports in this category. Not verified by NHTSA and not a casualty statistic.
0

What this page shows

Reports naming fuel storage or delivery — tanks, pumps, lines, injectors and fuel leaks. Every record below is an owner-reported complaint about the 2006 Mercedes-Benz CLK350 submitted to NHTSA — not a confirmed defect, not a recall and not a manufacturer bulletin. 11 reports on file name it.

Complaints are reports submitted by owners and drivers to NHTSA. They are not verified and do not establish that a defect exists.

Owner reports naming fuel system

Shown in the owner’s own words, exactly as filed

Fuel system
Filed Dec 26, 2017

I FIRST THOUGHT SOMEONE HAD BEEN STEALING MY GAS UNTIL MY CAR STARTED TO SMELL LIKE GAS. IF I GIVE SOMEONE A RIDE IN MY CAR, THEY MAKE COMMENTS ABOUT THE SMELL AS SOON AS I START TO DRIVE. MY COWORKERS HAVE NOTICED THE ODOR IN WHEN THEY PASS BY MY CAR IN THE PARKING LOT AND THE SPOTS THAT IT LEAVES ON THE GROUND. I TOOK MY CAR TO THE MECHANIC AND HE SAID MY FUEL PUMP IS LEAKING ON TO THE TOP OF MY FUEL TANK AT AN EXCESSIVE RATE AND IS NOT SAFE TO DRIVE. MY CAR ONLY HAS 84,000 MILES SO I DID SOME RESEARCH ON RECALLS. MERCEDES HAS EXTENDED WARRANTIES ON SEVERAL MODELS FROM 2006-2009 BUT MINE IS NOT ON THE LIST. MY CAR HAS THE SAME PROBLEMS AS THE OTHER VEHICLES EFFECTED. WHAT CAN I DO NEXT?

NHTSA ID
11056379
Incident
Dec 25, 2017
Mileage
84,000 mi
Fuel system
Filed Apr 7, 2017

ON DECEMBER 9, 2016 I TOOK MY 2006 MERCEDES-BENZ CLK350 TO THE DEALERSHIP BECAUSE OF A STRONG ODOR OF GASOLINE COMING FROM THE BACK SEAT AREA. THE DEALERSHIP FOUND THE FUEL SMELL WAS COMING FROM THE LEFT REAR FUEL SENDING UNIT LEAKING. ALTHOUGH I WAS AWARE OF THE EXTENDED WARRANTY AGREEMENT BETWEEN MERCEDES-BENZ AND NHTSA COVERING LEAKING GAS TANK COMPONENTS ON MERCEDES-BENZ CARS, I WAS INFORMED BY THE DEALERSHIP THAT THE AGREEMENT DID NOT INCLUDE GAS TANK LEAKS ON MY CLK VEHICLE, DESPITE THE FACT THAT THE SAME GAS TANK LEAK WAS COVERED ON OTHER MERCEDES-BENZ VEHICLES. THUS, I HAD TO PAY FOR THE EXPENSIVE REPAIR OUT OF POCKET. I AM REQUESTING THAT NHTSA AMEND YOUR PRIOR AGREEMENT WITH MERCEDES-BENZ TO INCLUDE ADDITIONAL MODELS SUCH AS MY 2006 CLK 350 WHICH HAVE DEVELOPED SIMILAR LEAKS IN THEIR FUEL TANK COMPONENTS.

NHTSA ID
10971100
Incident
Dec 9, 2016
Mileage
82,977 mi
Fuel system
Filed Aug 29, 2016

TL* THE CONTACT OWNS A 2006 MERCEDES-BENZ CLK350. THE CONTACT STATED THAT THERE WAS AN ABNORMAL FUEL ODOR IN THE VEHICLE. THERE WERE NO WARNING INDICATORS ILLUMINATED. THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC WHERE IT WAS DIAGNOSED THAT THE FUEL PUMP GASKET WAS CRACKED AND NEEDED TO BE REPLACED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS APPROXIMATELY 125,000.

NHTSA ID
10899204
Incident
Aug 15, 2016
Mileage
125,000 mi
Fuel system
Filed Jun 6, 2016

FUEL PUMP FAILED AT 35,000 MILES. DEALER AND MANUFACTURER REFUSED TO REPLACE. WANTED TO CHARGE $2000 TO REPLACE AFTER COMPLAINING REDUCED CHARGE TO $1400.

NHTSA ID
10872679
Incident
May 16, 2016
Mileage
35,000 mi
Fuel system
Filed Aug 7, 2015

TL* THE CONTACT OWNS A 2006 MERCEDES BENZ CLK350. THE CONTACT STATED THAT THERE WAS A STRONG ODOR OF FUEL OUTSIDE OF THE VEHICLE. THERE WAS NO FUEL VISIBLE ON THE GROUND. THE CONTACT REPLACED THE FUEL LEVEL SENDING UNIT. THE FAILURE RECURRED AND THE VEHICLE WAS TAKEN TO THE DEALER, WHO REPLACED THE FUEL LEVEL SENDING UNIT LOCATED ON THE DRIVER'S SIDE OF THE FUEL TANK. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 35,000.

NHTSA ID
10747005
Incident
Jan 10, 2013
Mileage
35,000 mi
Fuel system
Filed Jul 25, 2014

TL* THE CONTACT OWNS A 2006 MERCEDES BENZ CLK350. THE CONTACT STATED THERE WAS A PERSISTENT ODOR OF FUEL COMING FROM THE VEHICLE. THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC WHERE IT WAS DIAGNOSED THAT THE FUEL TANK WAS FRACTURED AT THE SEALING POINT AND WAS LEAKING FUEL .THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOT MADE AWARE OF THE FAILURE. THE FAILURE MILEAGE WAS 72,000 AND THE CURRENT MILEAGE WAS 76,000.

NHTSA ID
10616249
Incident
May 26, 2014
Mileage
72,000 mi
Fuel system
Filed Jul 15, 2014

TL* THE CONTACT OWNS A 2006 MERCEDES BENZ CLK350. THE CONTACT STATED THAT THERE WERE STRONG FUMES OF FUEL EMITTING FROM THE VEHICLE INTERMITTENTLY. THE VEHICLE WAS TAKEN TO AN AUTHORIZED DEALER, WHO DIAGNOSED THAT THE LEFT SENDING UNIT WAS LEAKING AND NEEDED TO BE REPLACED. THE VEHICLE WAS NOT REPAIRED. THE VIN WAS NOT AVAILABLE. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 67,585.

NHTSA ID
10610740
Incident
Jul 2, 2014
Mileage
67,585 mi
Fuel system
Filed Apr 23, 2014

SIMILAR TO THE GAS FUMES LEAK EXPERIENCED ON THE E CLASS, OUR 2006 CLK CLASS SUDDENLY EMITTED GAS FUMES ORIGINATING FROM THE GAS TANK AFTER THE TANK WAS FILLED WITH GAS. *TR

NHTSA ID
10584452
Incident
Apr 19, 2014
Mileage
74,207 mi
Fuel system
Filed Sep 18, 2013

TL* THE CONTACT OWNS A 2006 MERCEDES BENZ CLK350. THE CONTACT STATED THAT WHEN REFUELING, GASOLINE FUMES FILLED THE INSIDE OF THE VEHICLE. THE VEHICLE WAS TAKEN TO BOTH THE DEALER AND AN INDEPENDENT MECHANIC FOR INSPECTION. THE VEHICLE WAS INSPECTED AND WAS DIAGNOSED AS HAVING A DEFECTIVE RING AROUND THE FUEL PUMP AND TANK. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOTIFIED OF THE INCIDENT. THE APPROXIMATE FAILURE MILEAGE WAS 56,000. ...UPDATED 10-24-13 *BF THE CONSUMER STATED GAS WAS VISIBLE ON THE TOP OF THE TANK WHERE THE ELECTRIC WIRES CONNECT TO THE GAS PUMP. GAS FLOWS OVER THE EXHAUST PIPE AND ONTO THE GROUND. UPDATED 11/1/2013 *JS

NHTSA ID
10544180
Incident
Sep 19, 2011
Mileage
56,000 mi
Fuel system
Filed Mar 28, 2013

FUEL LEAKAGE/PUDDLING OUT OF TOP OF LEFT FUEL SENDING UNIT, MOST NOTABLE AFTER FILLING TANK. NOTICED AT LEFT REAR TIRE WELL OF CAR ON OUTSIDE ONLY. INITIALLY THOUGHT THAT THE GASKET ON THE SENDING UNIT WAS FAULTY (FUEL STAINING NOTED ON TOP OF SENDING UNIT)SO REPLACED GASKET WITH INITIAL IMPROVEMENT OF PROBLEM. AFTER SEVERAL MONTHS PROBLEM APPEARED TO RECUR BUT NOW CLEARLY WORSENING. FUEL SMELL HAD UNTIL RECENTLY ONLY BEEN NOTICEABLE AFTER PARKING IN GARAGE AFTER FILLING TANK, MOST RECENTLY NOTICEABLE IN OPEN PARKING LOT AFTER FILLING TANK. IMPROVES WHEN TANK LESS THAN 3/4 FULL. RECENTLY REMOVED INSPECTION COVER UNDER LEFT REAR SEAT ABOUT 30 MINUTES AFTER FILLING TANK. FUEL APPEARS TO LEAK OUT FROM UNDER THE ELECTRIC CONNECTION ON TOP OF THE 2" DIAMETER PLASTIC DISK, OR AT THE EDGE OF THE DISK, ON THE TOP OF THE SENDING UNIT. A 1-2 ML PUDDLE OF FUEL DEVELOPS WITHIN 30 MINUTES OF FILLING THE TANK. *TR

NHTSA ID
10504905
Incident
May 18, 2012
Mileage
75,449 mi
Fuel system
Filed Feb 11, 2013

VEHICLE WAS PURCHASED FROM AN AUTHORIZED MERCEDES BENZ DEALERSHIP AND WAS A CERTIFIED PRE-OWNED VEHICLE. AUTOMOBILE WAS GARAGE KEPT AND PRIMARILY DRIVEN TO WORK WITH HIGHWAY MILES. ONLY PREMIUM NON-ETHANOL MIXED FUEL WAS USED FROM SHELL. SUDDENLY, ONE DAY, STRONG GASOLINE ODOR PERMEATES GARAGE. MOST NOTICEABLE WITH FULL TANK. THE CAUSE WAS A FUEL TANK SENDER UNIT. A PLASTIC DIAPHRAGM WITHIN THE UNIT DEVELOPED A STRESS CRACK RIGHT AT THE BOUNDARY BETWEEN TWO FACES. IT IS CLEAR THAT PROPER BONDING BETWEEN THE TWO WAS NOT IDEAL DURING MOLDING. FUEL WOULD EGRESS OUT THIS CRACK LOCATED UNDER THE BACK SEAT AND ON-TOP OF THE FUEL TANK. $1000 WAS RECENTLY SPENT ON THE REPLACEMENT OF SENDER UNIT. SOME FUEL ODOR STILL PERSISTS WITHIN VEHICLE. THIS WAS CLEARLY A MANUFACTURING DEFECT AND SURPRISING CONSIDERING THE LOW MILES AND YEARS ON THE VEHICLE. REGARDLESS OF RAMIFICATIONS, GASOLINE OF SUFFICIENT QUANTITY IN PLACES UNINTENDED, SHOWS POOR WORKMANSHIP. THANK YOU. UPDATED 02/14/13*LJ THE CONSUMER STATED IT APPEARED THE PLASTIC VESSEL ITSELF WAS MADE BY A TIER SUPPLIER IN GERMANY. THE LEAK STARED FROM THE SEAM. *TR

NHTSA ID
10497811
Incident
Dec 10, 2012
Mileage
59,000 mi

Higher-selling and older vehicles accumulate more reports. Counts are not failure rates and are not directly comparable between vehicles that sold in very different numbers.

Other components reported on this vehicle

Categories with enough reports to have a page of their own

Elsewhere on this vehicle

Data sources

Data on this page last refreshed .