| 1 | 0 | 3 | 4 | 3 | 4 |
2009 Mercedes-Benz E-Class repairs by problem area
Engine (32%)
Transmission and Drivetrain (11%)
Brakes and Traction Control (3%)
Suspension and Steering (13%)
Electrical and Air Conditioning (28%)
Paint, Rust, Leaks, Rattles, and Trim (3%)
Other (10%)
Chart based on 102 repairs.
2009 Mercedes-Benz E-Class engine repair cost distribution
$2500+ (3%)
$1000 - $2499 (7%)
$500 - $999 (27%)
$100 - $499 (13%)
< $100 (50%)
Chart based on 30 repair trips. The repair cost chart excludes repairs made under warranty, do-it-yourself repairs, and repair trips that include maintenance.
2009 Mercedes-Benz E-Class 4dr Wagon
turbocharged 188hp 3.0L V6 Diesel 7-speed shiftable automatic RWD
| 108660 mi | Diesel glow relay malfunction. Relay changed and error indicator reset. |
| 141980 mi €350 |
1 "heating plug" in the diesel engine failed and needed to be switched. |
2009 Mercedes-Benz E-Class 4dr Wagon
268-horsepower 3.5L V6 5-speed shiftable automatic AWD
| 79000 mi US $800 |
Engine mounts replaced |
| 93000 mi US $900 |
Ignition |
2009 Mercedes-Benz E-Class 4dr Sedan
turbocharged 210hp 3.0L V6 Diesel 7-speed shiftable automatic RWD
| 54000 mi US $2300 |
Oil cooler seals leaked oil. |
| 58800 mi US $403 |
Glow Plug relay went bad |
| 66000 mi US $809 |
Check Engine light came on. replaced 2 turbo hoses and intake air filters |
| 91000 mi US $820 |
Bad vibration. Replaced 2 engine and 1 transmission mounts. |
| 93000 mi US $700 |
Car goes into limp mode |
2009 Mercedes-Benz E-Class 4dr Sedan
507-horsepower 6.2L V8 7-speed shiftable automatic RWD
| 29500 mi | At about 27k miles, it showed a C.E.L. It was a lean condition at idle caused by a vacuum leak. Could be a PCV valve or one of the emission related valves or hoses. Bringing it back on Oct 15 for final fix. |
| 29000 mi US $900 |
Replaced Breather valve, as part of the emission system. Had to remove intake manifold to replace. I've been told it's the ethanol gas that's causing the valve to fail. Replaced fuel sender unit. It was leaking fuel from the breather valve. |
| 34000 mi | NTSB investigation into the ongoing fuel regulator leaks in the the W211 E class. Mercedes did not make a recall but was forced extend fuel tank related warranty for 15 years(2023 for me). But they will not notify you. I found it on NTSB. |
2009 Mercedes-Benz E-Class 4dr Sedan
382-horsepower 5.5L V8 7-speed shiftable automatic RWD
| 47000 mi | small leak detected in coolant system |
| 52100 mi US $646 |
thermostat failed |
| 66000 mi | fuel pump leak |
| 111000 mi US $713 |
Motor and transmission mounts leaking and replaced |
| 138817 mi US $1114 |
Also replaced leaking oil pan drain plug gasket, and diagnosed both horns need to be replaced. Identified two other repairs necessary, replace rear brakes and rotors and replace spark plugs, estimated at $1100 for both jobs. |
2009 Mercedes-Benz E-Class 4dr Sedan
268-horsepower 3.5L V6 7-speed shiftable automatic RWD
| 88000 mi US $1000 |
Motor mounts. replaced |
| 71000 mi | Check Engine Light came on while travelling. MB codes P0101 P0103 P0113 P0302 P0304 P0300. Still trying to resolve because light is off but codes are present. Fuel System cleaner used and cleared light. Changing MAF next. Problem not solved. |
| 73000 mi | CEL turns On when I fill up with gas. Goes away within 1-2 miles after adding Techron. Did a compression test and found the Cyl 2 has low compression. Still diagnosing and want to do a leak down test to see whats up. Running rough at low rpm |
| 73000 mi US $4500 |
CEL with P0300, P0302, P0304 codes. Exhaust valve on cylinder 2 out of spec. confirmed with leak down test. Replaced Head. CEL with code P0305. Replaced all spark plugs. CEL off. Car runs fine now. (Since 0 miles, dealer maintained ). |
| 51000 mi | Idler pulleys that support serpentine belt. |
| 52000 mi | Fuel system odor. Certain parts related to gas tank changed. |
| 27300 mi | Brought in due to a slight knock or rattle for approximately 3-4 sec at start up. Dealer said it was a fuel knock. Installed a fuel injector cleaner, advised me to run 91 octane fuel (I always do) and to run it hard to clean out carbon. |
| 29200 mi | Engine still has slight knock or rattle upon cold startup. 2 days and 2 cold starts and tech could not duplicate. I will record noise since it is still making noise at this time. Not repaired. |
| 45700 mi | Replaced belt, tensioner, and idler pulleys due to a complaint of a belt squeal on cold start up. Took car in again with complaint of rattle on start up, this time with intermittent blue smoke. Dealer inspected cylinder bores, and found scoring in multiple cylinders, New engine on order. Pays to keep good service records. |
| 46000 mi | Engine replaced with new long block. Service manager explained that engine knock was due to a crankshaft manufacturing issue that was outlined in a TSB from 2012 that covered a range of engine serial numbers. |
| 73000 mi US $50 |
PCV assembly replaced |
2009 Mercedes-Benz E-Class 4dr Sedan
228-horsepower 3.0L V6 5-speed shiftable automatic AWD
| 62560 mi C $250 |
Bad thermostat and loose fan belt |
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