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.
2000 Mercedes Benz ML430FACTORY OEM SERVICE PROCEDURE
Engine Compression
COMPRESSION SPECIFICATIONS
| Application (1) | Specification | ||||||
|---|---|---|---|---|---|---|---|
| Compression Pressure | |||||||
| Gasoline Engine | |||||||
| Normal | |||||||
| 2.3L Supercharged | 109-153 psi (7.5-10.5 bar) | ||||||
| 2.8L V6 | 174-203 psi (12-14 bar) | ||||||
| 3.2L V6 | |||||||
| CLK320 & E320 | 174-203 psi (12-14 bar) | ||||||
| ML320 | 145-174 psi (10-12 bar) | ||||||
| 3.2L Inline 6-Cyl. | 145-203 psi (10-14 bar) | ||||||
| 4.2L V8 | 145-203 psi (10-14 bar) | ||||||
| 4.3L V8 | |||||||
| C43 & CLK430 | 160-189 psi (11-13 bar) | ||||||
| E430 | 174-203 psi (12-14 bar) | ||||||
| ML430 | 145-174 psi (10-12 bar) | ||||||
| 5.0L V8 | |||||||
| CL500 & S500 | 145-203 psi (10-14 bar) | ||||||
| SL500 | 174-203 psi (12-14 bar) | ||||||
| Minimum | |||||||
| 2.8L & 5.0L (Eng. 113.961) | 131 psi (9 bar) | ||||||
| 3.2L (V6) | |||||||
| CLK320 & E320 | 131 psi (9 bar) | ||||||
| ML320 | 116 psi (8 bar) | ||||||
| 3.2L (I6), 4.2L, 4.3L & 5.0L (Eng. 119.98) | 145 psi (10 bar) | ||||||
| 3.2L (I6), 4.2L, 4.3L & 5.0L (Eng. 119.98) | 145 psi (10 bar) | ||||||
| Maximum Difference Between Cylinders | |||||||
| 2.3L, 2.8L, 3.2L, 4.2L, 4.3L & 5.0L | 22 psi (1.5 bar) | ||||||
| Diesel Engine (3.0L) | |||||||
| Normal | 421-508 psi (29-35 bar) | ||||||
| Minimum | 261 psi (18 bar) | ||||||
| Maximum Difference Between Cylinders | 44 psi (3 bar) | ||||||
|
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Factory Service Tools
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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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.