Author Topic: Wipers parking in random positions  (Read 225 times)

TJ 450

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Wipers parking in random positions
« on: 07 July 2020, 09:44 AM »
Heaven forbid, I drove my 116 in the rain recently and had to use the wipers. They stop halfway back across the windscreen and other places half the time and I’ve tried swapping the relay to no avail. It does the same thing using the washer.

How does it know it’s in the park position?

Tim
1976 450SEL 6.9 1432
1969 300SEL 6.3 1394
2003 ML500

revilla

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Re: Wipers parking in random positions
« Reply #1 on: 07 July 2020, 10:44 AM »
Hi Tim,

Had the same problem years ago (hard to guess you have the same issue) and the only thing that fixed it was replacing the motor itself.  I understand you swapped the relay so that’s ruled out. The other possibility I can think of are dirty contacts on you stalk/lever inside the rotating knob. I’ve never opened one so no idea how to disassemble it. Or a corroded fuse too.
It seems like an issue that could happen to anybody. So sharing your findings is appreciated.
Robert
Robert
W116 1977 280SEL & 1979 280SE

floyd111

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Re: Wipers parking in random positions
« Reply #2 on: 07 July 2020, 03:41 PM »
(don't shoot me but) I have that issue with my CRV as we speak. Mechanic said it was the wiper blades, and we exchanged them. He said it was the windshield, so we fanatically cleaned it. I always claimed it was the motor, despite never having seen this issue on 3 other identical CRV's in 15 years.
I am going to change out the motor.

TJ 450

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Re: Wipers parking in random positions
« Reply #3 on: 07 July 2020, 07:35 PM »
I’m pretty sure I’ve got a spare motor around somewhere, I’ll have a search for it. If it is the motor, I’m thinking there must be a switch built into it so the relay knows the position.

Tim
1976 450SEL 6.9 1432
1969 300SEL 6.3 1394
2003 ML500

nathan

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Re: Wipers parking in random positions
« Reply #4 on: 07 July 2020, 08:40 PM »
Timmee Timmee Timmee,
WTF are you driving the 6.9 in the rain for!
 ha ha
if you cant find a wiper motor let me know as I think I saw two at dads place the other day.
regards
Nathan
PS I dont think ive tried my wipers in about 5-6 years!
6.9 79 #6436
6.9 79 #6290
6.9 79 #6181
6.9 78 #4764
6.9 77 #3096
6.9 76 #1741
6.9 76 #0902
6.9 75 #0018

robertd

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Re: Wipers parking in random positions
« Reply #5 on: 08 July 2020, 02:45 PM »
Nathan, the 6.9 drives faster in the rain.  you should try it.
116   1978 450SEL 6.9 #  4848
116   1979 450SEL  6.9 # 5884
116   1979 450SEL  6.9 # 6225  SOLD
116   1978 450SEL  6.9 # 5128  SOLD
116   1979 450SEL  6.9 # 5884  SOLD
116   1974 450SEL  DJet

TJ 450

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Re: Wipers parking in random positions
« Reply #6 on: 09 July 2020, 07:25 AM »
Hahaha,

Yes the 6.9 has seen a bit of rain (and mud) over the last few years, but I have done a lot of driving all over the place.

I’ll see how I go with the motor, I think I have one in a storage container somewhere.

Tim
1976 450SEL 6.9 1432
1969 300SEL 6.3 1394
2003 ML500

nathan

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Re: Wipers parking in random positions
« Reply #7 on: 11 July 2020, 07:36 AM »
RD you lunatic, 116s are as robust in the rain as fairy floss! they disintegrate , so I keep mine safely tucked away when the devils tears appear!
6.9 79 #6436
6.9 79 #6290
6.9 79 #6181
6.9 78 #4764
6.9 77 #3096
6.9 76 #1741
6.9 76 #0902
6.9 75 #0018