Judging by the instructions in the service CD for the W124, the OVP is secured in its bracket by a bolt, so it should be good and tight in there, unless the bolt is loose or missing. Should be the same on your 89.

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1988 California version 260E (W124)
Anthracite Grey/Palomino
Owned since new and still going strong and smooth
MBCA member

Past Mercedes-Benz:
1986 190E Baby Benz
1967 230 Inherited from mom when she downsized
1959 220S Introduced me to the joys of keepin' 'em goin'

There are only 10 kinds of people in the world--those who understand binary and those who don't

Common problem with the OVP relay is cracked solder connections on the printed circuit board, so hitting a bump in the road can cause an intermittent OVP relay to act up.

Technical OVP testing employs the standard Benz "Tappity-Tap Test.".
This is done with a light tapping of the OVP in situ with a screwwdriver handle when the condition exist... However , this tapping does have to be done to a specific rhythm /meter..
" Lord, won'tcha buy me..a.. Mer ..Say...Deys ..Benz, ....Oh Lord.. wont'cha buy me... aaaa mer..cedes.. benz.. ???? "
....with a kinda Blues feel , shuffle beat.........

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A Dalton

I talked to Cap'n last week and he is doing good and seems to be enjoying life.

Just for kicks I went out and grabbed a snapshot of the OVP in my '95 E300. Hopefully I will get it back together this week. I may need to replace it. The cruise is not working and I have not been able to do any troubleshooting on it. All you have to do to remove this one is "roll" it up counterclockwise while pulling the left tab out. The tab is at the left of bottom center in the pic.

The camera did a good job with it being dark and all - Casio Exilim. I struggle with taking good pics like this.

Attached Thumbnails

 

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Jim

Hi y'all,
Is there an OVP on a 1988 300 SE, and if so, where would it be. My car is getting to be hard to start. Seems to be mostly when warm, but not always. This morning's temp here in Texas was about 49- 50 degrees f, and it did not start as quickly as it did at 35 degrees a couple of days ago. And this afternoon, with weather of around 75 was hardest to start, but after normal operating temp started immediately every time. Any Clues?

What I have on the '89 is a hard plastic bracket attached to the inner firewall, behind the battery. A strip of aluminum that's part of the OVP provides mounting 'ears' that fit into the bracket - no screws on the OVP or any place for them on the bracket

You're absolutely right, works the same on my '88. Not the first time that the FSM instructions were either wrong or applied to some other chassis than the 124 without noting it.

__________________
1988 California version 260E (W124)
Anthracite Grey/Palomino
Owned since new and still going strong and smooth
MBCA member

Past Mercedes-Benz:
1986 190E Baby Benz
1967 230 Inherited from mom when she downsized
1959 220S Introduced me to the joys of keepin' 'em goin'

There are only 10 kinds of people in the world--those who understand binary and those who don't

I am trying to diagnose wipers not working. As soon as I turn on washer/wipers they kick out along with the windows and rear seat recline stop working. They came back operational after fifteen minutes or so.
Manual says the wipers are overload protected. Could this be the same OVP relay failure?
Thanks in advance for any advice.

Rando
1988 560SEL

OVP? Finally a cause for all problems. Now we can retire "second hand smoke", "global warming" and "George W. Bush" as the source of all the worlds ills!
Anziani