Driving a couple days ago, light just comes on while driving, hasn't gone off. I tried checking the switch, but can't even locate it. Fuses all good. Haven't checked grounds. Does anyone know where the switch is?


On a completely different matter, does anyone know what exactly stuck rings are?

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1983 240D 3.0T 4-speed manual, now sold

1989 Subaru GL Wagon 5-speed Touring Edition

check your brake fluid level. i think the light comes on when the fluid is low.

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Ben
1987 190d 2.5Turbo

fluid's fine

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1983 240D 3.0T 4-speed manual, now sold

1989 Subaru GL Wagon 5-speed Touring Edition

there might be a pressure switch on the left side of the MC. Push the reset button to turn the light off.

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1985 300TD Turbo Euro-wagon
1979 280CE 225,200 miles
1985 300D Turbo 264,000 miles
1976 240D 190,000 miles
1979 300TD 220,000

GONE but not forgotten
1976 300D 195,300 miles
1983 300D Turbo 175,000 miles

http://i42.photobucket.com/albums/e3...e485-1-2-1.jpg

I can't see a pressure switch.

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1983 240D 3.0T 4-speed manual, now sold

1989 Subaru GL Wagon 5-speed Touring Edition

You are sure that the fluid in the rear reaervoir of the MC is full?
It is sometimes hard to see into the rear chamber.
My clutch MC was leaking and draining the rear chamber and the brake light would come on.

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1981 240D 143k 4 spd manual -SOLD

2004 VW Jetta TDI 5 speed 300k -still driven daily

isnt there a foot pedal for the emergency brake,when depressed light is on,when released comes off,pedal works with spring release,make sure yuor pedal is retracting completely,switch should be at pedal assembly on drivers side under dash.this is only relevant if were talking about e brake light .is your e brake completely off when driving?

That's correct, there are two chambers in the tank (front and back) with a level switch for each one. Make sure the tank is really full and that the electrical connections on the top are connected. The parking brake switch is under the driver's dash, I believe.

You are one of the only ones that actually addressed the "parking brake" light {ie: emergency brake}.
I need to check this on Smash. I removed the bulb a year ago to pass inspection and never really thought about it much since. I guess I need to go look for that switch. Will be interested in what the thread starter finds also.

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Jimmy L.
'05 Acura TL 6MT
2001 ML430 My Spare

Gone:
'95 E300 188K "Batmobile" Texas Unfriendly Black
'85 300TD 235K "The Wagon" Texas Friendly White
'80 240D 154K "China" Scar engine installed
'81 300TD 240K "Smash"
'80 240D 230K "The Squash"
'81 240D 293K"Scar" Rear ended harder than Elton John

Disconnect the sensors on top of the brake fluid reservoir and see if that changes anything.

Your reservoir might be full but the sensors might be bad

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Ben
1987 190d 2.5Turbo

Alright, were those button looking things on top of the resevoir supposed to be pressure switches? Because pressing those did nothing. I took off the plugs, light turned off. Sprayed some WD40 on 'em, put 'em back on, light stays off. Don't know what the problem was, don't really care.

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1983 240D 3.0T 4-speed manual, now sold

1989 Subaru GL Wagon 5-speed Touring Edition

They're just connectors for the level switches inside the tank. As long as you have brake fluid.

http://www.peachparts.com/Wikka/W123BrakeWarningLights

Dave

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1970 220D, owned 1980-1990
1980 240D, owned 1990-1992
1982 300TD, owned 1992-1993
1986 300SDL, owned 1993-2004
1999 E300, owned 1999-2003
1982 300TD, 213,880mi, owned since Nov 18, 1991- Aug 4, 2010 SOLD
1988 560SL, 100,000mi, owned since 1995
1965 Mustang Fastback Mileage Unknown(My sons)
1983 240D, 176,000mi (My daughers) owned since 2004
2007 Honda Accord EX-L I4 auto, the new daily driver
1985 300D 264,000mi Son's new daily driver.(sold)
2008 Hyundai Tiberon. Daughters new car