Stock / OEM Suspension Info

Started by andibell, February 4, 2025, 08:20

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andibell

Can anyone tell me what the coil spring lengths & compression rates are as standard on FL / PFL please.
Looking to replace mine, which I think are lower than stock but seem to be sagging a little. Looking on AutoDoc and other sites I'm seeing springs anything from 340mm to 382mm for both front and rear.
TIA
Curse your sudden but inevitable betrayal

Beachbum957

#1
Different markets used different springs, as did different model years. Aftermarket companies like Sachs and KYB have different specs as well.  The best way to determine if the springs are OEM or sagging is found in the shop manual where measurements are given from suspension mounts to the ground.

PFL

Front: Measure distance from the ground to the center of the front lower suspension arm mounting point.  204mm (8.03in)
Rear: Measure the distance from the ground to the center of the front side strut rod mounting point. 270 mm (10.63 in)

FL should be slightly higher in the rear because of different springs and lightly larger diameter tires

Another common measurement is from the lip of the lower body seams at the jacking points to ground.  This varies from car to car, but should be close to 150 mm (6 in) to 160 mm front (6.25 in) and slightly higher in the rear.

andibell

Thank you.
Will have to get the wheels off at the weekend and see what's what...
Curse your sudden but inevitable betrayal

Beachbum957

The measurements given in the manual are for the car sitting on its wheels, which makes taking them a "bit" difficult.  Most people just measure from the jacking points on the body seam to the ground, as that is easy.

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