Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSBMW2001325CI 2D CONVERTIBLE, AUTOMATICREPAIR AND DIAGNOSISENGINE PERFORMANCEENGINE CONTROL SYSTEMSENGINE - REPAIRENGINE GENERAL11 00 045 CHECKING ABSOLUTE COMPRESSION OF ALL CYLINDERS
2001 BMW 325Ci 2D Convertible, Automatic
11 00 045 Checking absolute compression of all cylinders
2001 BMW 325Ci 2D Convertible, AutomaticSECTION 11 00 045 Checking absolute compression of all cylinders
With BMW Diagnosis Information System (DIS) .
- Connect DIS tester
- BMW measuring technology
- Preset measurements
- Absolute compression
- The further procedure is described in
- Help
- Help on preset measurements
- Adaptation of "Absolute compression"
- Clear fault memory
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.