* The internal ratio (boosting factor) in the brake booster has been changed: formerly 2.25, since 1985 models 3.0. Code since 1985 models: label showing 3.0 ratio. It is possible to install the modified brake booster in older models (beginning with 1978).
Min. brake disc thickness after machining *
Brake disc lateral runout
Installed brake disc lateral runout
Peak-to-valley surface finish of brake discs after machining
Parking brake (hand-operated)
Brake drum dia.
Brake shoe width
Liner area per wheel
Liner thickness front 30.6 mm 30 mm rear 26.6 mm 26 mm max. 0.02 mm max. 0.05 mm max. 0.1 mm max. 0.006 mm
Drum brakes with mechanical action on both rear wheels
* Brake disc must only be machined symmetrically, i. e. uniformly on both sides. Deburr vent holes after machining.
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