2011 Mercedes-Benz E350 4MATIC Repair and Maintenance

A guide to problems, costs, maintenance and repair for your 2011 Mercedes-Benz E350 4MATIC

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2011 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.

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.

Failed Gateway Module May Cause Lack of Audio/Cell Phone Functionality

Lack of audio or cell phone functionality may be related to the failure of the audio gateway module.

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2011 Mercedes-Benz E350 4MATIC Questions

MY BLOWER MOTOR STAYS ON AFTER I SHUT THE CAR OFF, IT DRAINED MY BATTERY. HELP (1 answer)

IT SNOWED AND RAINED A COUPLE DAYS BEFORE. BUT IT HAS SNOWED AND RAINED BEFORE.
SORRY ABOT THE CAPS.

ABS Brake did not engage thus causing an Accident (2 answers)

Feb 8th first time
Why did ABS brake did not Kick in and stop Car ?

email: denzillebrun@gmail.com

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2011 Mercedes-Benz E350 4MATIC Recalls

Driver's Frontal Air Bag Inflator Ruptures And Sprays Metal Fragments

The driver's frontal air bag inflator may deploy the air bag with excessive pressure, resulting in the inflator rupturing and causing metal debris to be sprayed onto vehicle occupants. Dealers will replace the driver's frontal air bag module free of charge to resolve the concern.

Piece May Break Off Front Engine Pulley

Forty-one vehicles may have a front engine pulley that was manufactured with an insufficient adhesive where the inner mass damper ring attaches to the vibration damper. If the inner ring were to separate with the hood open and the engine running, personal injury could result. Dealers will inspect and replace the affected parts to correct this issue. This recall is expected to begin during April of 2011.

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