W126

Removing Fading and Stains on Chrome Trim 1982 300SD

I have a 1982 Mercedes 300SD and the trim around the windows looks faded and ugly. It is as if they look like "hard" water stains on all the chrome door and truck trim. I have tried "windex" type cleaner to Bar Keeper's Friend to no avail.

Any tips on cleaning? Do not want to have the replace the trim.

Thanks
Jim

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rolled up seat belts will not release

To do some repair work in the rear seat area I took out the rear seat belts. I am trying to put them back in but cannot get them to release. After I removed them they rolled up most of the way and they will not unroll far enough to reach all the attachment holes. The ones I am using are from a 1991 420SEL. What is the procedure to get them to release. Thank you.

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Alda lock nut "sleeve" ('83 300SD/W126/OM617)

In Kent's manual '61x Automatic Transmission Tuning', on page 17, there is a description of how to adjust the ALDA.

You show a wrench around the locking nut. On W126's at least, the locking nut is not exposed. I cut the plastic cap off, but there is a metal "collar" or cylinder surrounding the screw & nut. This cylinder appears integrated to the top part of the aneroid capsule body itself, with no obvious way to remove it. There is no mention of this in the instruction.

How do W126/OM617 owners get to the locking nut with this collar so close around it? I think this may be the cause of some reports of people breaking theirs (trying to adjust the screw without loosening the lock nut).

Also:
- must the car be off for the adjustment?

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1982 300sd - intermittent heat

1982 300sd - heater blows warm for about 5 minutes then heated air turns cool. should i replace monovalve, then try solenoid that activates. turning heater to off then back on sometimes results in heat flowing again, but not always. turning car off then restarting returns heated air. i think malfunction in monovalve, but solenoid may be at fault as well. how do you diagnose which piece to replace or both? any sources for solenoid besides dealer?? i noticed you are sold out of solenoid

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