W116, BENZ AID - COMMON QUESTIONS AND ANSWERS

83 300D Air Cleaner Bracket problems

Hello all; Regarding the replacement of the Turbo Diesel Air Cleaner Bracket on my 1983 300D Turbodiesel, how does one remove the lowermost bolt to remove it? I tried a few things, and nothing worked. Special tool? Flexible socket extension perhaps??? ALSO, In messing around with it, I found that the little metal pipe that sticks into the bottom of the air filter housing seems a bit loose now. (think it returns oil to engine???) It definitely has play - moves several inches in fact. Looks like a nightmare to get to. Is some play normal?

Chassis Model Number

W123

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Diesel Engine Specific Aid

A/C problem below 1200RPM - '82 300TDT

I browsed the forum topics, but couldn’t find a way to search them, so please forgive me if this question is redundant. I just flushed my A/C system with Hecat Flush, replaced all o-rings (assembled with Nylog), replaced the compressor (used new seals), receiver/drier, expansion valve and the short hose that goes between the condenser & receiver/drier. I added the appropriate amount of oil upon assembly, and took it to the shop to have it charged with R12. The shop said it held vacuum well and that the compressor was working properly. The pressures for the R12 are according to spec.

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Chassis Model Number

W123

450 SL starting problem hot

I have a 76 450 SL it starts fine cold and runs great, after it is warmed up and shut off it will not restart. It almost acts like a vapor lock. The only way I can get it to run is to hold down the throttle body piston with a screw driver and it will idle. It seems to be more frequent in hotter weather. Any ideas were to start would be appreciated.

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Chassis Model Number

R107

Putting my 84' 300sd front end in order

Hello everyone, I am working on some of the final steps of restoring my 84' 300SD and one of the last steps in the suspension. I have purchased a lot of the stuff already (from the source of course) and the rest my Benz insane brother gave me. Here is what I am doing and replacing to get back the newer ride and handling like when it was new(er). Any advice or missing items, I would sure appreciate before I get things torn down and and advice or thing to watch out for would be good also. Front Bilstein Comfort Shocks Front wheel bearing replacement kit (both sides) Front Rotors, pads,shim kits and sensors Support rod repair kit Lower ball joints Tie Rod replacement kit Upper control Arms (both sides) Steering Idler repair kit Steering shock absorber

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Chassis Model Number

W126

heat-shield washer stuck!

76 MB 240D [115]: I've removed the injectors and replaced the nozzles but I can't get the heat-shield washer out of 1 of the chambers. I've applied WD40, 'Liquid Wrench', diesel fuel, and biodiesel in an attempt to lubricate the chamber; I've tried prying the washer out with several instruments [which worked with 1 of the others that was also stuck], but I've only succeeded in mangling the washer itself, which remains stuck to the bottom. Any ideas about cleaning agents to use or other techniques to try?

Chassis Model Number

W115

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Diesel Engine Specific Aid

Tire Valve Stems/ proper tire size

whats the story with the tire valve stems? i have a 1981 240d its time to change the treads. i noticed the valve stems have a hex lock nut should my local backwoods tire shop carry that style stem? or do i need to order a set up? do you carry them? what should i replace the tires with (size wise) the origials were a 14 SR or something like that. what is the modern equivilent ? Thanks ASP

Chassis Model Number

W123

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Body and Interior Specific Aid

1979 300D convert to Turbo?

My 1979 300D is still painfully slow and runs a little rough even after the valve adjustment, purge, injector rebuild and fresh oil and fuel filters all the way around. Is it possible to retrofit an entire turbo assembly with the intake and exhaust manifold (like the used one for sale on this site) on this non-turbo 3.0 engine? Isn't it the same block and manifold? I'm sure someone has had this idea before but I can't find it on any blogs. Thanks

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Diesel Engine Specific Aid

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Chassis Model Number

W123

85 300d Injector Nailing

Kent, I am having trouble with one of my five injectors nailing. Could you lend some advice? History: I sold my 82 and bought an 85 with less miles. I noticed that it was running a little rough and was smoking pretty bad. I figured that this would probably be cured easily so I brought it in and did some services on it including valve adjustment, diesel purge, cleaned the ALDA lines, and ran some 85 plus in the fuel. It continued to smoke (though not as bad) so I thought next that it was probably the injector tips so I bought the injector tips from you and followed your instructions on how to replace them and clean the injectors. I reinstalled them and no dice, still smoking and it was then that I noticed the nailing (I cannot remember if it was doing this before. It’s possible).

Chassis Model Number

W123

Forums

Diesel Engine Specific Aid

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