W116, BENZ AID - COMMON QUESTIONS AND ANSWERS

Diesel starting problems - cont.

My daughter has her 1985 300D at school in upstate NY, I'm in Missouri. She can't get her car started. I changed the pre-glow relay just befor she drove to NY, for the first time, in March. The initial problem was that the glow light never went off, the relay fixed that. A couple of weeks after she got to school she mentioned that the glow light stayed on after she started the car. Ignition on, light on, light off, start car, light back on always. This is different than the original problem when the light never went off during the pre-glow phase.

Chassis Model Number

W123

Forums

Diesel Engine Specific Aid

84 300SD Battery Drain

Anyone know how to diagnose a battery drain in a 126- 1984 300SD? I just bought this car a few months back with a new battery. I guess I know why the guy who sold it to me put a new battery in right before he sold it...... The car starts when jumped. The battery is 3 months new. I tested it with a multimeter. After sitting for the night the battery is around 10. After its jumped the battery reads 13.5. The alternator is fine as far as I can tell. Never died on me while I was driving and the battery charges while the car is running.

Chassis Model Number

W126

Forums

Body and Interior Specific Aid

87' 300TD NO A/C

Hello Everyone, I just bought a 87' 300TD. The a/c is not working. I'm a ASE certified master tech but I have no experience with Mercedes. The climate control seems to be working OK. THe fan speed changes with the temp settings, the air blows from the correct ducts when swithched which usually indicates no vacuum leaks or sevo problems. But the A/C compressor clutch does not engage. I checked the high and low pressure switches on the high side a/c line near the sight glass and they are not getting any power to them so jumping them will not help. I've read that the a/c control cutout relay could be bad, but I don't like throwing new parts at a problem without verifying with a test 1st. So can you tell me how to properly diagnos this ?? Thanks in advance for any help. Art D

Forums

Body and Interior Specific Aid

Taxonomy upgrade extras

SVO/WVO
Questions and Answers

Chassis Model Number

W124

Any differance in the 92-93 124 td

I`m looking for a 92 or 93 td, gets better milage and the last of d.i.y cars, I also like the more road feel is there any signiferant differance in these vehicles and anything to watch out for thanks for any replies, I have a 99 E300 that seems very few people can diagnose w/o putting in numerous parts which has cost a fortune and it`s time for her to go!

Forums

Diesel Engine Specific Aid

Taxonomy upgrade extras

Questions and Answers

Chassis Model Number

W124

'84 300SD driver's seat

I'm wondering if there's anyone out there that has had a seat motor go bad? I have replaced the seat switch on my driver's side to no avail and am wondering where to go next. I can hear the switch make a noise when I move it so I am assuming that is in working order. I have both of Kent's manuals (Chassis Door Maintenance and Repair & Front Seat Repair and Restoration) and neither speak directly to my situation. However, they do a wonderful job in describing how to remove the front seat, which I'm slightly afraid that's where I'm going to have to go to next!

Chassis Model Number

W126

Forums

Body and Interior Specific Aid

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