Service Brakes Related Problems of the 2008 Mercedes Benz CL550

Table 1 shows one common service brakes related problems of the 2008 Mercedes Benz CL550.

Table 1. Service Brakes related problems of Mercedes Benz CL550

Problem Category Number of Problems
Service Brakes problems
1

Service Brakes problem

My 2008 Mercedes Benz Cl550 is having a problem with brake. There is a thug-thug sound when I press down on the brake pedal. It goes away ~2 seconds after the gear is put into parking or neutral position. Mercedes benz knows about the problem and they told me that there is another car, a s class, that is having a same problem. S class is 4 door version of cl class. Mb told me that they are working on a new part over 3 months ago and now they are telling me that they are working on a software to fix a pressure problem in a valve. I don't understand the details but it sure sounds like an engineering issue meaning a defect. Mb said the issue is limited to a very small number of vehicles but I am not sure if that is the case. Noise was not readily noticeable but got louder so people might not notice it until later. I am very concerned because my brake pedal also feels much softer and weaker (need to press down further). I had this problem for ~4 months.


Service Brakes related problems in other Mercedes Benz CL550 model year vehicles:



CL550 Service Bulletins
CL550 Safety Recalls
CL550 Defect Investigations