The brake lamp warning light on my MB CLK230 is intermittent. I swopped all rear bulbs and it stopped for a time - now it has come on again despite all the bulbs working okay. I cleaned all contacts and checked the connections in the rear light clusters etc. It makes no difference - yet sometimes the light goes out only for it to return later.
I am resisting going to a MB dealer because I know they will charge me over £100 to rectify.
Any ideas??
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Are you sure it is a brake light warning lamp? The reason I ask is my new E-Class will tell me the exact lamp that has gone but my old C-Class just had a warning symbol that covered all the lamps. If one lamp went the warning symbol would come on so you just walked around the car and found the offending lamp and changed it.
Are you sure it is not the braking system warning lamp, if it is it may well come on intermitantly as the brake fluid may be low and intermitantly goes so low the sensor activates or the pads may be getting low.
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If it is the braking system warning lamp, heed it. When it came on in my recently restored Capri 2.8i it was telling me that a rear-brake cylinder had failed.
This problem was fixed by the same chap who services my MB and Golf. He's a German-car specialist whose hourly rate is less than half that of my local MB dealers and whom I trust far more and can talk to at length; what's more, he's mobile, so all the work is done at my place with none of the inconvenience of dealer servicing. Find yourself a similar agent; if you're in Herts, I can put you on to this one.
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Roger,
Thanks for the info. Yes, I would be very interested if you could give me details of your mechanic - I live in Watford.
Thanks.
Steve
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Steve
We both seem reluctant to disclose contact information on the site, so I'm going to take the liberty of passing my telephone number to Dynamic Dave and will ask him to forward it to you. I'm already getting hit by spade-loads of spam, which I suspect is because I participate in several forums (websites and e-mail discussion groups) and therefore am vulnerable to the harvesting of e-mail addresses. If this is an ill founded worry, I'm sure Dave or Mark will tell us.
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Steve I'm going to take the liberty of passing my telephone number to Dynamic Dave and will ask him to forward it to you.
Done.
I'm already getting hit by spade-loads of spam, which I suspect is because I participate in several forums
>>(websites and e-mail discussion groups) and therefore am vulnerable to the harvesting of e-mail addresses. If this is an ill founded worry, I'm sure Dave or Mark will tell us.
See Stephen Khoo's previous message about this.
www.honestjohn.co.uk/forum/post/index.htm?t=7225&m...e
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I had the same problem on my E Class 230E. It was solved by checking the wattage of the rear (and maybe all the bulbs). The system works by measuring what current the system should be drawing, and comparing it with what it is drawing. It is sentitive to a difference, hence, contacts must be clean to avoid drawing too much current throgh resistance. I had foolishly put in 5 watt bulbs instead of correct 10 watt ones. They were working but the warning light was on, for what seemed no reason. New 5 watt rear bulbs solved everthing. So simple, yet it drove me crazy.
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This system (and the equivalent BMW one) is very picky on resistance in the circuit. Make sure all the contacts are spotless and use a contact lubricant (eg Electrolube) or similar to keep corrosion at bay. I also found on the BMW that you really need to use the BMW-supplied bulbs; 'generic' bulbs bought from a factor set the warning light on! MB system is probably the same.
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