1996 Mercedes Benz SL320FACTORY OEM SERVICE PROCEDURE

Engine Compression

COMPRESSION SPECIFICATIONS

Application Specification
Compression Ratio 10.0:1
Compression Pressure
Normal 145-203 psi (10-14 bar)
Maximum Difference Between Cylinders 22 psi (1.5 bar)
Factory Service Tools

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

Disclosure: Verified tool recommendations may earn an affiliate commission at no cost to you.

When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.