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1991 benz 500sel driver side lights stays on park light turn…

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1991 benz 500sel driver side...
1991 benz 500sel driver side lights stays on park light turn signal and tail light won't goes off turn signal indicator stay solid
Submitted: 7 months ago.Category: Mercedes
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Answered in 2 minutes by:
12/4/2017
Mercedes Mechanic: Marty, Mercedes Technician replied 7 months ago
Marty
Marty, Mercedes Technician
Category: Mercedes
Satisfied Customers: 55,216
Experience: Bosch Certified Master Tech. Over 35 years experience.
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Hi, my name is***** car has European parking lights. If the headlight switch is turned too far to the left the left side lights will stay on. Check the headlight switch and see if is in the straight up and down position.

Let me know what you find.

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Customer reply replied 7 months ago
Headlight switch is straight up n down
Customer reply replied 7 months ago
Continue to response by messages
Mercedes Mechanic: Marty, Mercedes Technician replied 7 months ago

Ok, can you give me some background on this problem?

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Mercedes Mechanic: Marty, Mercedes Technician replied 7 months ago

I also need the vin number for my wiring diagrams.

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Mercedes Mechanic: Marty, Mercedes Technician replied 7 months ago

And is it only the rear lights that are staying on or are the front lights also on?

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Customer reply replied 7 months ago
WDBGA51E8NA023142
Mercedes Mechanic: Marty, Mercedes Technician replied 7 months ago

Thanks, ***** ***** only the rear lights that are staying on or are the front lights also on?

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Customer reply replied 7 months ago
Marty the vin #WDBGA51E8NA023142 light switch is straight up n down all lights stays on except headlight turn signal won't blink on same side
Customer reply replied 7 months ago
Waiting on you
Customer reply replied 7 months ago
I see a panel with 2 set of wires into back on top has(###) ###-####along with white dots 53 53b etc. is this the plug hate to disconnect wrong instrument
Mercedes Mechanic: Marty, Mercedes Technician replied 7 months ago

That's the wiper relay. You need to remove the top cover on the fuse box to access the lamp failure monitoring unit. The part number on the unit should be 140 542 05 32 or 06 32 or 09 32.

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Customer reply replied 7 months ago
the box is off see fuses and wiper relay is the lamp unit under the fuses I see nothing else unless the fuses box itself lifts up
Mercedes Mechanic: Marty, Mercedes Technician replied 7 months ago

I sent you a picture earlier. It sounds like you haven't removed enough of the top cover. Refer to the picture I sent.

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Customer reply replied 7 months ago
Ok see it 140 542 03 32 removing still on
Mercedes Mechanic: Marty, Mercedes Technician replied 7 months ago

I need to be clear as to exactly which lights are staying on. When you disconnected the lamp failure monitoring unit the lights should have turned off. Are the lights at both the front and rear staying on?

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Customer reply replied 7 months ago
Corner light and tail light it's crazy light switch up n down
Customer reply replied 7 months ago
Turn signal not working driver side corner front light on rear tail light on ONLY on driver side
Mercedes Mechanic: Marty, Mercedes Technician replied 7 months ago

Try disconnecting the central locking pump underneath the passenger side rear seat cushion.

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Customer reply replied 7 months ago
Marty will look at this in the morning after disconnecting and light do goes off want then
Mercedes Mechanic: Marty, Mercedes Technician replied 7 months ago

If the lights turn off when you disconnect the central locking pump I'd replace the pump. If they remain on I would look for some aftermarket wiring installed in the vehicle or a short in the wiring harness. The light module and the pump should be the only sources of power to the lights.

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Customer reply replied 7 months ago
Marty no luck unplug unit on pass.side corner light still on why would just driverside light stay on?
Mercedes Mechanic: Marty, Mercedes Technician replied 7 months ago

Can you send me a picture of all of the lights that are on? I need to be clear as to what circuits I am tracing on the schematic.

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