Question about 1999 Mercedes-Benz CLK

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The BAS/ASR malfunction indicator lights up(CLK 320 1999 model) . What are the possible causes and remedies?

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Brake switch needs replacement.

Posted on Jan 22, 2011

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I would like to know the positive and ground pin numbers for the rear driver side brake connector. Its one and for to red and black on the passenger side. With lol?

Posted on Oct 05, 2014

  • klymb inane
    klymb inane Oct 05, 2014

    passenger side is 1 and 4 1 is red 4 is black, should read twelve on two points. what is driver side ? 5 is black is it 12 or 3 for red. wth?


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I just took the brake switch from behind the brake i googled it how to change asr switch i took it out took it apart there was a short puched the metal tab back put the switch back togather and it was fixed all lights went out and the asr worked again dont go buy no 65 part when its easy to fix 1999 clk 320 now i need to find sun roof relay

Posted on Feb 18, 2013

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My 2000 clk 320 brake lights will not come on after i have checked and changed all fuses as well and change the brake light switch

Posted on Apr 28, 2011

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1 Answer

Problem with the 1999 Mercedes-Benz CLK Clk320 asr/bas light on

try cleaning the contacts under the front seats ,where you will find a multi connector thats yellow ,cannot say it will cure it but ??' If you are in europe then if it goes to a garage they are ordered by the EEC to change all airbags on a vehicle over ten yrs old ,new directive

Sep 22, 2011 | 1999 Mercedes-Benz CLK

1 Answer

Indicator lighting

ASR is the Anti Slip Regulaor or traction control not sure about BAS possibly Brake Assist System sounds like a brake issue or a bad sensor

Mar 29, 2010 | 1999 Mercedes-Benz SLK

1 Answer

What does the BAS ASR light mean in a mercedes 1998 E320?

brake light switch ,that's the part you need to replace to fix that BAS/ASR light. It's a $20 US part, a screwdriver, and 15 minutes to fix.

Aug 09, 2009 | 1999 Mercedes-Benz E-Class

1 Answer

The ABS ,BAS& ASR lights keep coming up


Most likely cause is the 'stop lamp switch'
It is a electric switch located on the brake pedal inside the car, about half way up on the brake pedal.
Pretty cheap too, I think the switch is only like $25 bucks.
2 connectors on the switch and then it turns out.
hope that helps

Feb 25, 2009 | 2001 Mercedes-Benz C-Class

2 Answers

BAS (Brake Assist System)

need to replace brake switch intermittent problem with them ....for lights bas, abs,asr,to go off..

Sep 23, 2008 | 2001 Mercedes-Benz C-Class

1 Answer

04 clk320

well.. the output speed sensor is the output side of your transmission speed sensor... these are horrible on merc's... easily replaced... but a pain to get the correct one.. and this sensor could cause almost all the problems you list alone... but with such low miles it may be a warranty item? as it is on your transmission...

Sep 16, 2008 | 2004 Mercedes-Benz CLK-Class

1 Answer

Abs and bas lights comes on and displays take to work shop,i can still drive the car. i have a 2001 clk 430 with 67, 120 miles on it

need more info-possible bas diaphragm switch gone bad.does the fault occur as soon as you turn on the car or as soon as you step on the brake pedal??

Jul 22, 2008 | 2006 Mercedes-Benz CLK 500

1 Answer

BAS ASR problem

ok, first you have to clear the codes.
in this type of cars you cannot clear codes with a regular obd II it has to be the factory scanner or similar. after you clear the codes drive it for a while. when light comes back on scan it again and that is going to be your true problem. if you replaced the switch but didn't clear the code the light will be still on because the computer doesn't know that you fixed the problem. so try it out and let me know if worked.

May 15, 2008 | 1998 Mercedes-Benz CLK

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