W116, BENZ AID - COMMON QUESTIONS AND ANSWERS

85 300SD w/ Trap Oxidizer vacuum presure reading

I followed Kent's instructions the best I could in his Vacuum Diagnostic manual. Here is what I did and what readings I got: following the main black plastic line to the firewall, there are several lines that split off. 5 in total, I believe. I unplugged the four smaller, colored lines and plugged them with golf tees. The remaining line is actually some sort of plastic housing unit with a curved rubber hose attached. I took my measurements from this point and with the engine on, I got a measurement of 10 psi from my mityvac. I think this means something is up with my vacuum pump, unless I performed my measurements incorrectly.

Chassis Model Number

W126

Forums

Body and Interior Specific Aid

Alarm Buzzer Steering Lock 1983 300SD

Kent,

I have read your manual for the replacement of the steering lock + tumbler and purchased all the parts I need. I have a steering lock from a very well maintained 91 420SEL. Can I use the alarm buzzer from that one for the steering lock of the 83 300SD? It is different in that it allows for one more plug than the one on the 300SD - but the other plug looks the same.

Thank you
Dieter

Chassis Model Number

W126

Forums

Body and Interior Specific Aid

1984 300D Stalling

I have replaced all filters, including the one in the tank and all looked clean. I am still experiencing loss of power and then stalling as if a filter is clogged. When pumping the manual pump attached to the injection pump, it does not have pressure. It's like there is an airlock, but engine will start. I also checked the tank and it is vented. Any ideas? Thanks.

Chassis Model Number

W123

Forums

Diesel Engine Specific Aid

1984 3ooTD Tailgate will not unlatch

Help! The tailgate on my 1984 300 TD will not unlatch. It won't open from the inside or the outside. Lock button pushes in... nothing. Lift the inside lever up... nothing. Unfortunately, I'm not sure it's actually "unlocked" as that whole emchanism feels wrong when trying to unlock with key. Is there a way to bypass everything and at least get it to open so it can be worked on?

Chassis Model Number

W123

Forums

Body and Interior Specific Aid

Removing Crankshaft Vibration Damper 1980 300D

I need to replace the gasket behind the water-pump housing on my 1980 300D. According to the service manual I first need to

1) remove radiator and fan
2) remove all v-belts
3) remove pulley
4) remove vibration damper

It looks like the bolts holding the pulley on are all that is holding the vibration damper on. Is that correct?

perhaps I should go a little further and swap out the front seal while I'm in there?

thanks!!

-nigel

Chassis Model Number

W123

Forums

Diesel Engine Specific Aid

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