2006 Mercedes-Benz E350 4MATIC Repair and Maintenance

A guide to problems, costs, maintenance and repair for your 2006 Mercedes-Benz E350 4MATIC

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2006 Mercedes-Benz E350 4MATIC
$
367
to $
989
2006 Mercedes-Benz E350 4MATIC
$
131
to $
239
2006 Mercedes-Benz E350 4MATIC
$
329
to $
543
2006 Mercedes-Benz E350 4MATIC
$
492
to $
1,213
2006 Mercedes-Benz E350 4MATIC
$
174
to $
397
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2006 Mercedes-Benz E350 4MATIC Problems

Oil Seepage on Back of the Cylinder Heads

The Mercedes Benz E350 4matic may have engine oil seeping or leaking from the back of the cylinder heads. This is commonly misdiagnosed as leaking valve covers.

On the back of the cylinder heads there are three, in total, plastic expansion plugs that plug access ports to the camshafts. These plugs are well known for seeping oil, and leaking if left unattended. The oil will run down the back of the engine and eventually make it to the ground. 

Replacement of these three plastic plugs is extremely simple, and should be done as regular maintenance. The recommended interval for replacement is every 60,000 miles.

Check Engine Light and Engine Noise

The engine in the E350 4Matic is known by Mercedes Benz to have issues due to a poorly manufactured gear on the balance shaft (also known as the counter-rotating assembly). Since the balance shaft gear is driven by the timing chain, which keeps the engine rotating synchronously, when it fails, the timing of the engine will change causing:

-Illumination of the Check Engine Light

-Rough Running Conditions

-Stalling

-Loud Rattle or Slapping Noise

-OBD Trouble Code P1200 and P1208

Correction for this issue is replacement of the balance shaft, or balance shaft gear. Replacement of the timing chain and tensioner should be done as well. The Mercedes Benz dealer may cover some or all of the repair cost on select vehicles as a result of a class action settlement.

The Power Steering Fluid Reservoir Leaks

The power steering reservoir designed for the Mercedes Benz E350 4Matic commonly leaks power steering fluid causing a screeching sound when turning the steering wheel, especially when the vehicle is stopped. The power steering light may illuminate on the dash for more severe leaks.

This is caused by cracking in the plastic reservoir, or a hardened, brittle seal between the power steering reservoir and power steering pump.

Remediation involves replacing the power steering fluid reservoir, power steering fluid, bleeding the system of air, and replacement of the seal between the reservoir and power steering pump.

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2006 Mercedes-Benz E350 4MATIC Questions

Is my mechanicell telling me the truth? (1 answer)

Mỹ serpentine belt broke. Since I can't drive it to dealership, I had a mobile mechanic come to replace the belt. The pully on the tensioner was wobble, but I did not replace it until I have ever more money. After two weeks, the belt got slice. So I have another mechanic replace the bel...

Has been great, have 70,854 miles, next oil change due at 89,000,miles, (1 answer)

Service C is being flash on display, due in 28 days,,,

What does Service C provide????

Why does this car smell like burnt oil when running? (1 answer)

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2006 Mercedes-Benz E350 4MATIC Reviews

Rated
based on 2 customer reviews
,I stopped to get coffee and when I back in it and turned the ignition it would not start. It had plents of juice and wanted to turn over but would not catch
took my car downtown Dallas last weekend and everything was fine,I stopped to get lunch and when I back in it and turned the ignition it would not start. It had plents of juice and wanted to turn over but would not catch. I waited for over 3 hours trying on and off before having it towed to my hotel in irving,where it sat for 1 week. everyday I would go out and try to turn it over and thismorni...

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