Technical modifications - RA0704104TA00X
WARNING: This page does not describe the selected car, but rather 42 other vehicles, including the 1999 Mercedes-Benz S600, 1999 Mercedes-Benz S500, 1999 Mercedes-Benz S420, 1999 Mercedes-Benz S320, and 1999 Mercedes-Benz CL600. However, it is still accessible from the selected car via links, so may be relevant.
07.4 Electronically controlled gasoline injection system (LH)
| Designation | Nature and reason for modification | Production breakpoint | Op. No. |
|---|---|---|---|
| Injection valve | O-ring at injection valve made of material more resistance to cold temperatures | 06/91 | - |
| Injection valve | Diameter of insulating sleeve reduced by 1/10 mm | 07/91 | - |
| LH control unit | Software revision, improved cold starting properties | 01/92 | - |
| Injection valve | Fuel outlet has been converted from 4 to 2 holes to improve fuel preparation | 09/92 | 07.4-6520 |
| Fuel filter | Conversion of fuel filter from 0.5 liter, was 0.6 liter, except |
02/93 | - |
| LH resistance trimming connector | Note re colour coding | 06/91 | 07.4 - 1459 |