Hi Robert,
I believe this is an ASR module from an early R129 SL, not an E-GAS module.
You have had this listed in the E500E Parts for Sale section. Doesn’t look like this module will fit an E500E, as it is solely for the early R129 chassis. Also, I believe the R129 in early form (through the 1992 model year) utilised CIS-E fuel injection on its M119.96X motor, not LH as the 1993 500SL models debuted, so it wouldn’t have an E-GAS module like the E500E's.
Moving to appropriate sub-forum.
Cheers,
Gerry