Idle Speeds, CO Content, Firing Angle
| Engine | Idle speed in rpm | CO content | Firing angle | |
|---|---|---|---|---|
| in vol. % | in °CA BTDC | |||
| Manual transmission | Automatic transmission | at idle speed | ||
| 20 XEJ | 860 to 1020 | 0.7 to 1.2 | 2) | |
| C 20 XE | £ 0.3 1) | |||
| C 20 LET | 860 to 1020 | |||
| X 20 XEV | 670 to 1030 |
When checking idle speed and CO content, note:
- Electric consumers switched off
- Engine at operating temperature (oil temperature ³ 80 °C)
- AT vehicles in selector lever position "P"
1) At 2800 to 3200 rpm
2) Firing angle adjustment not possible