W126, BENZ AID - COMMON QUESTIONS AND ANSWERS

1990 300 SE trouble starting after driven short distance

My 1990 300SE runs fine normally but lately when I go out and start it it starts fine but if I drive a very short distance or kill it and try to resart it it turns over and sounds like it is mis-firing and won't start. This is happening more and more often but not every time. After I finally get it started it runs fine in park but if I put it in gear it sputters and dies this happens over and over and then eventually I can get it started and go. While it is doing this I can rev the engine up in park and it runs great but as soon as I put it in gear it dies.

Chassis Model Number

W126

Forums

Gas Engine Specific Aid

Steering coupler replacement - 79 300sd W116

Have a newly acquired 79 300sd w116 - Looking for help/ advise on procedure to remove and replace the steering coupler assy. - this is the metal coupler with 2 Hex head bolts clamping onto the stering column shaft on 1 side & Steering Box on the other.
Do I
a) loosen pull out the steering column shaft via the inside steering column / wheel assy inside
b) Loosen - drop the steering box assy

Has anyone done this that can advise on the best way.

Chassis Model Number

W116

Forums

Transmission / Suspension Specific Aid

300sd 1982: Electric surge under console drains battery

Dear Friends!
I am an owner of MB 300SD 1982. Recently, the car presents disabling electrical issue which I hope to pin point eventually. There is a electrical surge somewhere under console ( I can hear climate control clicking) which drains all electric charge (battery). When it happens all my dashboard indicators go wild. Surprisangly, all fuses stay intact. I suspect it may be blower engine goes bad, but I am not sure. Anybody had this problem before?

Chassis Model Number

W126

Forums

Body and Interior Specific Aid

1985 300TD - Fuel Boost Pump Problem?

A couple of years ago I installed the fuel boost pump sold on this site (DSE-COMAEBP) and the optional filter. Can failure of this pump result in fuel supply problems?

I ask because yesterday I developed the classic symptoms of a fuel supply problem: the car will start but runs rough and eventually stalls. I checked the boost pump filter, changed the main fuel filter and bled the air from the system, No change. I then ran diesel purge through the injectors and re-bled the air. No change.

Chassis Model Number

W123

Forums

Diesel Engine Specific Aid

83 300TD To flush or not to flush tranny?

I help a friend maintain her 1983 300TDT, and it is due for a transmission fluid & filter change. It has very recently been slipping when in "D" on an incline, such as at a stop sign at the top of a hill. It will just start rolling back. I will be changing the fluid & filter, and plan on using the Lucas additive as well. She has recently taken it to a couple different shops for some work to be done, and someone had apparently overfilled the transmission. I took out the excess with my mity-vac, but the performance remained the same.

My question is this:

What is your opinion of transmission flushes for these older MB auto trannies?

Chassis Model Number

W123

Forums

Transmission / Suspension Specific Aid

1982 300D Hard Shifting and Flaring ??

I changed the transmission fluid and the filter 300 miles ago; lately, when I start driving, the car seems to stay in first gear too long and then suddenly jump into second gear; it makes the rear wheels chirp;
it then shifts quickly from third gear to fourth gear.

I am looking at the following:

1x 616 617 Diesel Transmission Vacuum Shift Valve Dashpot Upgrade $10.85
1x Diesel Automatic Transmission Peak Performance Tuning - NEW MANUAL RELEASE

Can you help?

Chassis Model Number

W123

Forums

Transmission / Suspension Specific Aid

Pages