LH-SFI variable reference resistor modified - BT07.41-P-0001-01A
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.
ENGINE 119.97 as of 1.6.91
STANDARD PRODUCTION BREAKPOINTS/MODIFICATIONS/NEW FEATURES
| Engine | LHS RHS | Transmission | Engine end no. as of | Engine end no. up to | Production period as of | Production period up to | Nature and reason for modification | Reference/Remarks |
| 119.97 | 01.06.91 |
As of 06/91 color-coded variable reference resistors have been installed. Models:
- with TWC green variable reference resistor
- without TWC white variable reference resistor
(USA/California version does not have a variable reference resistor)
On models with TWC and national version
it is not
permitted to install a white variable reference resistor otherwise the secondary air injection pump will run constantly and the air pump may be damaged as a result.