Michael Wilks

Help!! Have been searching everywhere also let 2 MBZ dealers fail to find the problem. Briefly the engine (fully serviced and 100kms only) develops a loud whining or whirring noise (take your pick) after 10 minutes of normal driving. The noise corresponds with acceleration and handing does seem to become a little sluggish. There are no registered technical faults and no warnings of any kind. I recently had the main fan drive belt replaced and everything else seems to work fine (except for a slight tick on deceleration.)
I have been told noisy abc pump by one dealer another said rubbish! The ac compressor does sound noisy to me with a screwdriver placed to the ear but not sure if this is relevant. Any ideas this otherwise beautiful car is driving me nuts? Thanks in advance.

mrbobby

If you would fill out the personal information tablet completely people would be more able to assist. As an example you talk of Kilometers. This means you could be in Europe or Canada for example. This is the time period where Mercedes introduced the new 7 speed transmission replacing the old 5 speed. The early 7 speeds had torque converter, separator plate and other introductory type problems. Your problem here could be transmission , A/C or ABC pump related . More information about your vehicle will get you more helpful answers. Good luck with the repair and welcome to the Forum.