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Old 10-16-2003, 11:46 AM
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Join Date: Aug 2001
Location: Potomac, Maryland
Posts: 29
1998 c230 brake sensor & trans service ?

Pad wear indicator light is starting to come on intermittently during hard breaking. Is this for front or rear pads ? How long do I have before service is needed ? I have heard as high as 1,000 miles is ok with light on.

Secondly, the car has 73,000 miles and has had no service done except oil changes and a new mass air sensor. Should I have the transmission service done or not ? It looks like it is just a fluid swap. Posts have shown transmission issues once the thing is touched for the first time. I think I might be better off just leaving the tranny alone. All feedback appreciated.
1998 C230
1994 Infiniti J30T
1984 BMW 318i
1987 VW Golf GT
1975 Buick LeSabre Conv.
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Old 10-16-2003, 08:09 PM
Gilly's Avatar
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Join Date: Mar 2001
Location: Evansville WI
Posts: 9,616
You may or may not have rear sensors. Usually the front pads are what makes the light come on, not always of course, but the front brakes wear out at about twice the rate of the rears.
The hazard of not replacing the pads, other than the possibility of wearing the pad surface off completely, is that if you do wear the pad surface off completely, you could ruin the rotors, which may otherwise be able to be reused. You need to measure the thickness of the rotors and see if they are ablove the service spec (this isn't the same as the min. thickness, the service spec is usually around .5-.6mm thicker than the min. spec. . DON'T machine the rotors, either they are reuseable or they're not.

I recommend against the transmission service. If the transmission fails it won't be because of the fluid.

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