Common Mercedes Repair Issues

Mercedes-Benz has become synonymous with both luxury and performance. Few other brands can match the level of luxury, performance, and reliability that Mercedes has managed. Being one of the oldest car brands in the world, there’s a Mercedes to match everyone’s needs and tastes.

Mercedes’ aren’t perfect and we do see our fair share come through our doors. If you are considering a Mercedes-Benz as your next vehicle, here are a few of the most common Mercedes repairs we see in our shop.

Engine Mount Failures

Engine mounts secure your car’s engine to the chassis. However, Mercedes-Benz uses rubber isolating mounts to reduce the noise and vibration transferred to the cabin from the engine. Like all rubber items on your vehicle, engine mounts have a limited lifetime. They will wear out, becoming less effective and allowing the engine to move more in the engine bay. This can result in a harsher ride and less power being transferred to the wheels.

Newer Mercedes-Benz uses oil-filled engine mounts, known to begin failing at the 100-000-mile mark, or after ten years. Engine mount replacement is an in-depth task requiring the engine and transmission to be raised off the chassis.

Oil And Differential Leaks

If the underside of your Mercedes is damp, it’s just as likely that it’s from an oil or differential leak as it is a bad engine mount. Mercedes engines, especially those from AMG like the M156, are made of several core parts with gaskets in between each. The he oil pan, for example, is three different parts. The sheer number of gaskets in the engine makes an oil leak more likely.

Oil leaks also frequently occur due to the deterioration of pinion seals and axle seals. Once a leak occurs, it is recommended to replace all the gaskets as preventative maintenance.

Transmission Failure

Many Mercedes-Benzes manufactured after 1995 use electronic transmissions prone to graphite buildup from the clutch wearing down. This graphite buildup causes blockages in the valve bodies. This can cause fluid to leak into the 13-pin connector, which causes additional damage to the control module and wiring harness.

Graphite can also cause electronic components to short out and fail. The telltale sign of graphite buildup in the valve bodies is slow shift times and a harsh feeling shift.

Engine Misfire

Modern AMG Mercedes Cars use direct injection to improve performance. The downside of direct injection is that it causes significantly higher carbon buildup in the cylinders. This carbon buildup often leads to sticking valves and dirty spark plugs, which are the main culprits of an engine misfire.

To prevent this from occurring, we recommend you stick to Mercedes-Benz’s recommended maintenance schedule and have your cylinders walnut blasted every 80,000 miles to remove excessive carbon buildup.

Your Mercedes Benz Maintenance Center In Pompano Beach

Foreign Affairs Motorwerks has been South Florida’s go-to maintenance and performance shop since 1978. From factory-scheduled maintenance to performance modification and repair, there is no better place to bring your Mercedes. Our team of ASE-certified mechanics has the proper training and every tool to make sure any job done on your Mercedes is completed the same way they would in Stuttgart.

Don’t hesitate to book your Mercedes today by calling (954) 746-0488.