Engine Compression
WARNING: This page is about a different car, the 1995 BMW 525iT, 1995 BMW 525i, 1995 BMW 325is, and 1995 BMW 325i. However, it is still accessible from the selected car via links, so may be relevant.
Check engine compression with engine at normal operating temperature at specified cranking speed, all spark plugs removed and throttle wide open. The DME master relay and/or fuel pump relay MUST be pulled out for compression test. See ADJUSTMENTS article for additional information.
COMPRESSION SPECIFICATIONS
| Application | Specification |
|---|---|
| Compression Ratio | 10.5:1 |
| Compression Pressure | 142-156 psi (10-11 kg/cm2 ) |