Date registered: May 2003
Vehicle: 81' 300SD, 82' 300D
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Quoted: 2 Post(s)
If the car is pulling during breaking, you need to look at the calipers, not the rotors. Take the car out for a drive and take the temperature of the wheels with an infrared thermometer. If one wheel is much hotter than the other, you've found your offending caliper.
If not, take a look at the rubber brake lines. If they are as old as the car or over 10 years old, replace them. It's probable that an old line has collapsed inside and is acting as a check valve, not letting fluid out of the caliper.
If the brake lines and calipers check out fine and you still have the pull, then it's time to check out the front end components.
1981 300SD DB881 ext./code #236 leather int. aka: thistle green ext./olive int.
1982 300D, DB877 ext./code #135 mb-tex int. aka: petrol green ext./creme int.