R107 1988 420 SL Both Windows Stuck in Same Position

hoochani

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Hey R107 peeps, having put the hood up. Put the electric windows up. Only realised after when about to lock up the car that they hadn't gone all the way up. Both stopped in the same position (around 80% closed). Checked the all the fuses. All look good and in tact (none broken). Gave them each a little check to see if they are seated properly.

Makes me think it's likely a relay given that they both windows have stopped working (rather than an issue at the window switches themselves).

Anyone happen to know which relay is responsible for the window motors on the attached photo or have wiring diagram for a R107 1988 420 SL?

(Ignore the numbers on the relays that was for my own testing when swapping around the multi-purpose relays to see if it yielded any results)

Fortunately it was garaged when this happened so not a huge drama - any help appreciated.
 

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hoochani

New Member
Joined
Oct 7, 2024
Messages
4
Reaction score
3
Your Mercedes
420SL
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Hey R107 peeps, having put the hood up. Put the electric windows up. Only realised after when locking car that they hadn't gone all the way up. Both stopped in the same position (around 80% closed). Checked the all the fuses. All look good and in tact (none broken). Gave them each a little check to see if they are seated properly.

Makes me think it's likely a relay given that they both windows have stopped working (rather than an issue at the window switches themselves).

Anyone happen to know which relay is responsible for the window motors on the attached photo or have wiring diagram for a R107 1988 420 SL?

(Ignore the numbers on the relays that's just me labelling them when swapping around the multi-purpose relays to see if I could locate the problem)

Thanks so much for any help.
 

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  • IMG_4157.jpeg
    IMG_4157.jpeg
    285 KB · Views: 3
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