I did it! Keyless entry for your 124 made easy (and less than $100)! - PeachParts Mercedes-Benz Forum

S-Class Guru · #1 01-09-2008, 06:20 PM

Guys, great thread.
But I still have some confusion/concerns about the alarm (old-timer's disease).

- Costanza had no alarm, so no issue for him.
- Crhenkel said the alarm will not be an issue, as long as the unit fires the
driver door unlock, the alarm will be disarmed.
- But Dacanes said he hooked a signal to the alarm to get it to disarm.
(what year/model was his car?)

It seems pretty clear that any vacuum system will need the DLS-V relays.

But, am I "alarm-safe" installing Contanza's system in a '91 126 with the vacuum system that unlocks all doors from the trunk?

Thanks a lot,
DG

crhenkel · #2 01-15-2008, 12:29 AM

Quote:

Originally Posted by S-Class Guru

Guys, great thread.
But I still have some confusion/concerns about the alarm (old-timer's disease).

- Costanza had no alarm, so no issue for him.
- Crhenkel said the alarm will not be an issue, as long as the unit fires the
driver door unlock, the alarm will be disarmed.
- But Dacanes said he hooked a signal to the alarm to get it to disarm.
(what year/model was his car?)

It seems pretty clear that any vacuum system will need the DLS-V relays.

But, am I "alarm-safe" installing Contanza's system in a '91 126 with the vacuum system that unlocks all doors from the trunk?

Thanks a lot,
DG

YES, as long as the unit is unocking the sytem, be it the the trunk or the doors, the alarm will disarm. I had a system on another MB and did it on the trunk ( a W124 300CE) it worked fine.