Idle Speed, CO Content, Ignition Timing
| Engine | Idle speed in rpm | CO content | Ignition timing | |
|---|---|---|---|---|
| in vol. % | in °CA BTDC | |||
| Manual transmission | Automatic transmission | |||
| 14 NV | 900 to 950 | - | 0.5 to 1.5 | 5 |
| E 16 NZ | 770 to 930 | - | 1.0 to 1.5 2) | 10 |
| C 16 NZ, X 16 SZ 1) | £ 0.35) | |||
| C 16 NZ2 1) | 800 to 960 | - | £ 0.35) | |
| 16 SV | 900 to 950 | 800 to 850 | 0.5 to 1.5 | |
| 18 SV | 8 to 12 1) | |||
| E 18 NVR | 870 to 970 | 770 to 870 | 0.5 to 1.5 3) | |
| E 18 NVR 4x4 | - | |||
| C 18 NZ | 800 to 960 | 750 to 910 | £ 0.35) | 10 1) |
| C 20 NE | 720 to 880 | 720 to 880 | £ 0.35) | 8 to 12 1) |
| C 20 NE 4x4 | 890 to 990 | - | ||
| C 20 NEF | 720 to 880 | 720 to 880 | ||
| 20 NE | 1.0 max. | |||
| 20 SEH | - | |||
| 20 SEH 4x4 | 890 to 990 | - |
1) Ignition timing adjustment not possible
With carburettor engine: pull off vacuum hose from control unit
2) With Diagnostic Switch KM-640 in position B or TECH 1 in mode F6
3) With activated CO increase
4) 2 E 3 carburettor with idle load compensation
Driving stage engaged/consumers off: idle speed 800 ± 25
5) At 2800 to 3200 rpm without load