Mercedes-Benz W126 spring replacement and spring tools
300 SE260 SE300 SEL
How are the W126 rear springs replaced?
The shock absorber is removed, and the spring is compressed out with a spring compressor placed inside the spring. Alternatively the rear is slowly lowered with a jack so the springs relax. The level control hoses are disconnected from the shock absorbers before replacement. Support the car on stands and never work under it on a jack alone.
Can a W126 front spring be replaced one at a time, and is driving with a broken spring safe?
One front spring can be replaced at a time. A broken spring can slip out of place, so driving with it can be dangerous. Use a proper spring compressor, because a home-made compressor is dangerous. Suspension is safety-critical, so have a workshop check the result.
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