Mercedes-Benz vehicles are dependable, built with high quality materials and cutting edge technology but they are not immune to problems.
Mercedes Benz vehicles often experience the following common issues:
Engine mounts
Mercedes-Benz vehicles have oil-filled engine mounts. Their primary goal is to cut the impact of engine vibrations. But because they are oil filled they deteriorate and leak the hydraulic oil. When the engine mounts fail, you will feel while sitting in the seats and at times through the steering wheel mostly at idle.
Engine misfires.
Mercedes Benz engines and not immune to engine misfires. Most common issue is worn spark plugs that haven't been changed at the proper maintenance interval. Another common problem is a failed ignition coil. Most failed ignition coils are from, that’s right, worn spark plugs. Worn spark plugs will cause the ignition coils to overwork and overheat. While on the subject of Mercedes Benz spark plugs, be careful what brand spark plugs are used at replacement.
Some Mercedes Benz engines, Gas Direct Injected (GDI) engines, require factory Mercedes Benz branded spark plugs or engine damage can result.
Oil Leaks.
Mercedes Benz engines do not leak often but depending on the engine here are some of the common leaks.
oil Filter, oil cooler housing leak at the seal between the engine and filter/cooler housing. Most times just replacing the seal will not fix the leak, proper repair is replacing the entire housing.
Valve cover gaskets tend to leak, the valve cover gaskets get old and shrink requiring replacement.
Camshaft plugs, crankcase breather cover on back of cylinder heads. If your Mercedes-Benz engine is equipped with these parts, the plastic fails and oil leaks out of the engine.
Air suspension.
Mercedes Benz Air Suspension provides a great ride when it is working, but when components fail the repair cost can get expensive.
Air struts, airbags are the most common failures. The rubber bladders deteriorate, crack and leak.
Air compressors fail, most times due to a leaking air strut or airbag that hasn't been repaired, causing the air compressor to overwork and fail.
If your Mercedes-Benz car has this issue, you'll probably notice uneven ride heights, vehicle height drops when the car is shut off. Some vehicles the car will sit so low that when turning you can damage the front fenders.
Suspension
Most Mercedes Benz vehicles have multi link suspension which when everything is in good shape gives a fantastic ride.
But when components fail the ride suffers, tires wear, noises etc. Some of the bushings are hydraulic filled for better ride quality.
Bushings, ball joints, struts, shocks all do wear out and leak hydraulic fluid. will need replacement over the life of the vehicle.
Are Mercedes Benz Reliable?
All car brands have their own problems.
But is a Mercedes Benz more reliable than the others?
Mercedes Benz cars generally have average reliability scores—not the best, but certainly not the worst. Modern cars, including Mercedes Benz, are more reliable than those from a decade or two ago. Mercedes Benz stand out for their excellent ergonomics, fit and finish, luxury features, cutting edge technology, and top-tier safety.
Maintaining a Mercedes Benz doesn’t have to be costly. With regular upkeep and professional checkups, you can significantly extend the life of your vehicle and keep repair costs manageable. Routine maintenance helps you stay informed about your car's health and allows you to address common issues before they escalate into major problems.
If you encounter any issues with your Mercedes Benz or have any concerns, don't hesitate to reach out. As the premier Mercedes Benz repair specialists in Tucson, Stuttgart Autohaus offers expert service and are here to address your questions and ensure your vehicle runs smoothly.
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