Mercedes-Benz 300-Class - Recent Questions, Troubleshooting & Support - Page 9

Replace the battery my friend.That's all.The present battery is DEAD.

Try to download the manual on the link below. 1990 to 1995 Toyota 4Runner OEM Repair and Wiring Manuals

Is it an automatic or manual transmission?

no fuse, replace the oil pressure sensor. good-day!

Try this site from Diesel Giant. Good pics and layout. They also have a schematic in pdf. http://www.dieselgiant.com/mercedesvacuumtroubleshooting.htm

Sounds like you have a short in your alarm or on the Positive battery cable that is grounding your battery and draining it. If this has happened more than once on this battery get a battery cell tester and test the battery cells to make sure you have developed a dead cell which will happen. When you jump the vehicle take the positive battery cable off the battery. If the vehicle continues to run the Alternator is working properly if it dies, which explains why you jump it and have to re-jump it again after driving it, the alternator or voltage regulator is malfunctioning. If you have installed a power amplifier in the vehicle that has cabling under the hood double check that for shorts and check you power wires at the ignition switch for a short.

On the driver side strut mount in a tootsie roll sized case.

installing radios into electronic controlled cars can be a real nightmare as the wrong wires used creates many CPU problems . Best have it installed by professional radio fitters at the shop where you bought the wireless and save your self a headache.

run the fault codes to ensure that the EGR valve is faulty. Engine lights to not always come on unless there is something drastic going on with the engine /gearbox so that you can stop the car before damage is done.

Drain engine oil and tranny oil from engine, replace with correct amount of engine oil. Check on getting a Chilton or Haynes repair guide for your vehicle. This will help you better understand your vehicle. If you need further help, reach me via phone at https://www.6ya.com/expert/frankie_091f536560a54e12

Do you know if TCC is disengaging? Sounds like your describing a trani issue. Let us know.