Models: 2015 Mercedes-Benz S550 Base with ABC Suspension
Complaint: The customer can feel and see the vehicle rocking by 6 to 10 mm (when stationary with transmission mode “D” engaged and the engine running.
Cause: Wrong springs coded. Software coded for hard springs instead of soft springs. Parameters for readjustment of the vehicle level are not correct.
Remedy: Perform new SCN coding of ABC control unit, then calibration of plunger travel sensors and load calibration.
A misalignment of the plane of the belt can occur when a pulley is not parallel to the other pulleys on the belt drive system.
Drive Belt Alignment Alignment is key to the health of an engine belt. The belt drive system is designed to create friction between the grooves on the belt and pulley to transfer power from the crankshaft to the alternator, water pump or power steering pump. If the grooves on the belt do not align with the pulleys, the friction won’t be evenly applied and can result in wear and noise.
What if there are no codes and a misfire is intermittent? This is where it gets complicated.
The area of contact between the lifters and cam lobes is the highest loaded surface inside an engine.
Many alternator problems turn out to be nothing more than a bad connection at the alternator or a bad wiring harness.
All-season coolant used inorganic acid technology and worked great for almost 30 years.
Why do ignition systems give technicians problems when diagnosing ignition-related misfires? The answer is that some technicians use tests that might give inconclusive results or do damage to the coil or drivers inside a module.
Servicing the serpentine belt on some vehicles is a tough task.
Here are six tips to use when diagnosing a vehicle with a dead battery.
As the timing chain wears, it can change the timing of the camshaft and crankshaft.
