🎳 Mercedes W212 Automatic Gearbox Problems

Here are the common problems that can cause missing/faulty readings from the transmission range sensor: Malfunctioning transmission range sensor (PRNDL input) Issues with the transmission range sensor circuit, such as damaged wires or poor connections; Defective valve body; Defective shift linkage; Faulty TCM or PCM Bring the vehicle to a complete stop on level ground. Press the parking brake button on the side of the steering wheel. Open the driver’s door, remain in the vehicle, and press the brake pedal. Move the gear selector stack to neutral by pressing it up or down. Disconnect both auxiliary and car batteries. You may not need a full rebuild, but I certainly did. Good luck! (By the way, I drove mine for months / 5k miles without reverse, which was a fun challenge.) 1990 420SEL (190k miles) Arctic White (147) with Tan interior. Chassis: 1260351A545187. Engine: 116965 12 081447. Transmission: 722355 03 379123. The car developed a vibration from the drive shaft area under the car between 30-50km/h, changing the transmission mount in the video fixed that issue for me Surging can be an EGR problem. A hard judder could be worn friction plates in the torque converter lockup clutch. This sort of judder is sometimes described as being like driving over a cattle grid. Perhaps low oil pressure for the lockup clutch (sticky solenoid or worn oil pump). While these are the typical symptoms of a failed valve body or conductor plate, Mercedes-Benz transmission can go into LIMP MODE due to other issues that may not be directly related to the transmission. These transmission problems may start developing as early as 50,000 miles. Replacing the valve body will cost between $2,000 and $3,000. This article applies to the Mercedes-Benz E-Class and E-Class AMG (2002-2009). If the transmission fluid level is low, the transmission's hydraulic system can exhibit main line pressure fluctuations. The erratic and unstable change in the main line pressure creates instability in the torque converter's clutch pressure. Comoli. 6 posts · Joined 2005. #20 · Oct 16, 2005. My E350 built Feb 2005 has had two incidents where the 7G tranmission has gone into neutral while driving. First at 4500km and second time at 4800 km from new. Mercedes has now changed the valve body of the transmission with a new part number. I have a Mercedes E 280 (Gasoline) year 2006 with 7G automatic transmission. The car kilometers is 115000 and have serious problem with transmission. Of a sudden the car has no electric power while dr … read more 4. 236.12. The family of 4-speed automatic transmissions Mercedes 722.3 - 722.4 has been used since 1981 on all popular RWD Mercedes models with engine capacities from 2.3 up to 5 liters, which operate for decades. The difference between series 722.3 (W4A40) and 722.4 (W4A20) is externally indeterminate, because both gearboxes operate flawlessly. In 2002, Mercedes-Benz vehicles were fitted with a new 4-cylinder petrol engine built from scratch. This engine is known as the M271 CGI. The working volume of the new power unit is 1.6 or 1.8 liters. The engine grew from 122 to 202 hp. It is installed on the Mercedes-Benz W203, W204, CL203 (C-class), W211, W212, C207 (E-class), R171, R172 (SLK Drivers will be made aware of this by a noise near the pump. Fuel Leaks at the Fuel Filter with integrated fuel heaters – Fuel can exit the car and is noticeable by a diesel odour. Rear Suspension Level Sensor – (W212’s without Airmatic) – Blocking of the level sensor linkages can lead to the level sensor recording that the vehicle is .

mercedes w212 automatic gearbox problems