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.
2004 Saab 9-3 Linear, AutomaticFACTORY OEM SERVICE PROCEDURE
General data
GENERAL SPECIFICATIONS - PISTONS
| Engine | B207E/B207L/B207R |
| Compression ratio | 9.5: 1 |
| Nominal compression (bar) | 14.5 |
| Min. compression (bar) | 12.4 |
| Piston play nominal (mm) | 0.013 - 0.047 |
| Piston speed at 5000 RPM (m/s) | 15.8 |
IMPORTANT:
Pistons of different makes must not be used in the same engine. The piston make is cast onto the piston.
Factory Service Tools
Use the Manual With the Right Hardware
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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.