BENZ AID - COMMON QUESTIONS AND ANSWERS

A/C blowing out of defroster on HOT days????

My 1990 350SDL is blowing the A/C out of the defroster on day when it's over 80-85 outside. If it's a little cooler, the A/C come out of the dash vents as it should. If the hot day cools down, the climate control will switch from defrost to dash. Is this a vacuum pod problem or a climate controle unit problem? Any guidance would be great. Thanks!

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Body and Interior Specific Aid

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Chassis Model Number

W126

Radiator Neck Kit - 1988 560SL

I reviewed with interest the description of the radiator neck repair kit offered on this site. Not having had any problems - never gave it another thought. After an enjoyable cruise last evening along the Niagara River, before putting the 560SL away, I was checking the oil level and was shocked to see the smallest little bead of coolant at the base of the upper radiator neck. It was only about 1/32" but when I wiped it away, it slowly reappeared. Kent, is it too late for me or will your kit save my bacon? If not, can I assume you have a better replacement rad. available?

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Body and Interior Specific Aid

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Chassis Model Number

R107

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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Body and Interior Specific Aid

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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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Body and Interior Specific Aid

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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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Body and Interior Specific Aid

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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

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