BENZ AID - COMMON QUESTIONS AND ANSWERS

1983 300 TD - AC turns to a Hot Blast

Hi All,

I purchased by 1983 300 TD in November 2009 so this is my first summer with Frau Blucher as we have named her. The AC worked well as it started getting warmer. We have had a nice hot summer in Atlanta and I'm getting some interesting behavior from the AC.

On the hottest days when you start out, the air blows cold and the car is comfortable. As long as you are driving it is fine. When you stop to go into a store or something, very often when you start back you get an intense blast of heat out of the vents for at least 3-5 minutes. Sometimes the cool kicks back in and other times it doesn't. It is not just lukewarm air but feels like it is actually heated.

Chassis Model Number

W123

Forums

Diesel Engine Specific Aid

'82 300SD overheats in 114 deg. stop and go traffic

Kent,

I have a 1982 300SD with a new radiator, hoses, thermostat, fluid with correct ratio, fan clutch, blets all from Mercedes Source. I recently to a trip to Las Vegas where it was 114 most of the time. When driving on the highway at 65 mph I had very normal engine temp and my A/C was ice cold. As soon as I got into stop and go traffic, all bets where off. The engine temp climbed to just under the red and my A/C was warm. The aux. fan was on and the fan clutch seemed to be working just fine. The condenser fins don't look to be blocked either.

Chassis Model Number

W126

Forums

Diesel Engine Specific Aid

1982 240D Poor Electrical Connection to Starter?

Hi Kent et al.,

I have a 1982 240D with manual transmission. Lately I've been having intermittent starter trouble. I've followed the 'Why Wont My Mercedes Engine Crank Over' guide.

My battery is in good condition and reads 12.4VDC, and I'm confident the charging system is working correctly.

When I jumper the solenoid I get the same behavior as turning the key. Here's what happens:

The solenoid seems to be working properly, and sends current to the starter. The starter spins, but fails to fully engage. I hear a rattling/grinding sound, which sounds like the gears failing to mesh, and instead chattering against each other.

Chassis Model Number

W123

Forums

Diesel Engine Specific Aid

190E 16v Still wont run.

I havea 190 E and 16 valve mercedes.I wrote to you before asking why it only started when i primed it and followed your suggestions.I replaced the Fuel Accmulater,Fuel filter and cheak valve.primed it and starts but will not stay running.as if it was out of gas.The fuel pump is making alot of noise can this be my problem to.Like i said in my first letter will start if i prime it but now it only stays started till prime runs out.ANY SUGGESTIONS WILL HELP .THANK YOU.

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Gas Engine Specific Aid

1984 300D Rear shoe brake replacement adjustment.

Just replaced and tryed adjusting rear brake shoe assembly with new rotors...Now, the car does not back up or feels like it is rolling up onto something. Not sure if I adjusted the star gear properly. I know there is a balance, but this is getting frustrating. The E-Brake pedal inside the car does not get enough resistant/stiff when pedal is pushed down. It releases fine/quick.

Chassis Model Number

W123

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Transmission / Suspension Specific Aid

1980 300D Slow ATF Leak

I recently changed the fluid and filter for the automatic transmission in my 1980 300D. I'm not sure how many versions of the fluid pan Mercedes made, but mine has a drain plug that screws in to the pan through the filler line. The plug has opennings in it that allow the fluid to pass through to fill the pan. I cleaned everything well and replaced the aluminum washers with new copper ones, so I was surprised to find it leaking. I was thinking about putting a thin layer of RTV on the washers to improve the seal, but was wondering if there are any other fixes I could try first.

Chassis Model Number

W123

Forums

Diesel Engine Specific Aid

86 300 SDL Turbo/ Lift point Hard rubber buffers

Well....
When I finished the new brush install,
I closed the passenger side front door...
and the darned rubber bumper fell clean outta the bottom.
I quickly got a hammer and a piece of wood and carefully banged the rocker panels....NO HOLES YIPPIE
But what do I do?
Opus is a nice clean ride and I just hope this isn't the beginning of a Hansel and Gretel car.
Any thoughts.

Update:::
Found out that the lift points are called "hard rubber buffers"
Tryed every where ....
any one know where I can get replacements?

Chassis Model Number

W126

Forums

Body and Interior Specific Aid

Blower Motor & new Brushes/ 86 300 SDL Turbo / TIPS

Not so much a question as some tips
Kent once again has takin the guess work out installing new brushes.
This is a back bender!
If you're real careful, you don't need to remove the underdash cover(fabric)
Loosen the screws and carefully pull towards the rear of the car.
won't move much, but enough to able to pull the plastic cover away from the "waffle" motor/fan cover.
{Left it in because I couldn't figure out how to yank the cover which is fastened with staples to the duct}
Remember: IF YOU FORCE THINGS THEY WILL BREAK!!!!!
As Kent says "take your time"
Well
Took the housing out and used this stuff called "Tuff Stuff" (spray foam cleaner)and cue tips and carefully rinsed the cage with water. DO NOTE SOAK MOTOR.
Sprayed the armature and such with contact cleaner

Chassis Model Number

W126

Forums

Body and Interior Specific Aid

85 300td radiator epoxiable???

so...just replaced my radiator, all hoses and the thermostat (all mercedes source parts)...putting the hoses back on and when i go to the this hose that goes from the top left of the radiator to the top of the coolant reservoir, as i was tightening the clamp, the plastic nipple of the radiator snapped off...do i need to buy a new new radiator now, or can it be epoxied and still used???...any recommendations on the specific glue to use???...

really bummed at my mistake, came down to a lack of presence in the final moments...thanks for your support!

Chassis Model Number

W123

Forums

Diesel Engine Specific Aid

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