Question about 2003 Mercedes-Benz C-Class
Its possible the glow plugs when its warm the diesel is warm and starts more easily when its cold the diesle needs warming more so the glow plugs work harder in the winter only way i know how to test them is to take 1 out at a time turn the pre ignition on so the glow plug light comes on and the plug should glow red if not buy the 4 and replace the lot you could also check the wireing going to the plugs hope this helps ivan
Posted on Dec 02, 2017
SOURCE: car problems
Sounds to be a loose or corroded wire/s at either starter motor or at battery fusible links.
Also check the earth strap (Cable) between engine and bodywork.
Hope this helps, MMP
Posted on Aug 09, 2008
hello,hoping they right,maybe your front sam is switching a electrical consumer,even your ignition key is out,resulting your battery drain,if possible ,request your dealer a print out regarding front sam actual values and specified values for your reference,ty
Posted on Apr 21, 2009
Switch ignition on
Press trip counter button twice
Switch ignition off
Press and hold trip button while switching ignition on
After 10 seconds new service interval will be displayed +beep
Release trip button
Switch ignition off
Posted on May 19, 2010
Testimonial: "IN the first test it was OK! tanks a lot for your help and best regards"
Your fault need identification after the vehicle is parked for a long time. The nearest possible area of doubt is the condition of the engine. You have not specified the mileage clocked and the regularity of periodic service because if this is done systematically there can be lesser areas to look for in our trouble shooting solution. Hencce to start with your fuel pump, the fuel filter and see if the fuel drains off inthe fuel system when parked for long time. If so identify whether it is in the fuel system or the pump. If fuel seems fine, the engine compression, valve setttings must be in order for a quick start. If this shows good reading, asssesment of the compression of each cylinder by a test of the pressure of air exhausting in each of the cylinders is good. If this looks ok then check on the to the actuator or the auto choke valve. If possible drain off/ run off your fuel and try a different higher grade. I have the feeling that the fault could be the firing or the fuel both of which you can check on alternate days before starting( for petrol check your plugs, your HT coils or replace, for diesel check your glow plugs and replace if bad or worn out ). Hope I could assist. Good day
Posted on Jul 22, 2010
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