97 740il
did some searches but couldnt really find what im experiencing.
had some bad "clunking" from the front drivers side wheel. replaced control arm because ball joints and bushings were bad.
the "clunking" did go away but now i can feel ( car braking when lift off gas ), see ( smoke and even the heat radiating off the wheel) and SMELL the front brake dragging ( NOT locking up )
pads look ok. but the rotor does look like the picture below.
i pulled the wheel and to my surprise the rotor spun pretty freely.
this just started happening about a week ago.
i can get about 2.5 miles before the smell shows up.
i do have the ABS/Traction light issue.
wondering if i am looking at a caliper or master cylinder problem? or perhaps these rotors are really warped ( explaining the way this rotor looks?)
cheers
Last edited by Gilly32; 03-20-2019 at 07:35 AM.
Check that the wheel bearing is OK by fitting the road wheel and tugging and pushing the wheel at the 6 and 12 o'clock positions with both hands - if it moves it is likely that the bearing has failed.
Timm..2007 E64 650i Individual Sport..1999 E31 840ci Individual Sport..ex owner of 2000 E38 740..1999 E38 740i V8 M62..1998 E38 735i V8..1993 E32 730i V8..1988 E28 518i
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If the bearing is OK you have a seized caliper - they don't necessarily bind when they have cooled down.
Timm..2007 E64 650i Individual Sport..1999 E31 840ci Individual Sport..ex owner of 2000 E38 740..1999 E38 740i V8 M62..1998 E38 735i V8..1993 E32 730i V8..1988 E28 518i
My BMW Repair YouTube Channel
My Current 840ci Sport Individual
My Current 650ci Sport Individual
My E31 Repair and Information Website
My E38 Repair and Information Website
My E63/E64 Repair and Information Website
Chase - Heroes to a generation
You may have a flexible hose to caliper that is delaminating the inner liner, holding pressure when the brake is released.
Common problem with older flexible lines.
Fine when starting out, then the residual pressure keeps the pads dragging slightly, or in bad cases dragging a lot.
That rotor looks rough also. All that rust in the cooling fin area will inhibit the brakes cooling down, increasing the
possibility of brake issues. Be sure to use a quality brake lube on the caliper to bracket mounts.
Last edited by oldroller; 03-23-2019 at 06:58 AM.
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