Doug Dykaar

I‘m an engineer who still plays with cars. Porsche, BMW, Mercedes (and Bultaco).

Recent Posts

W210 E320 4matic Front Shock Replacement DIY

Blog Feature

Normally this job would require the use of a special (Klann type) spring compressor, as access to the spring is limited by the design of the upper spring perch. The perch is attached to the car and ...

BMW E39 540i Fan & Fan Clutch Replacement

Blog Feature

The problem: The fan on the BMW 540i is only indirectly connected to the motor, and the viscous coupling is a separate unit in the middle of the fan. The fan is plastic and fan failures have been ...

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