So I'm in a predicament right now.. I recently bought a keyless entry system with the impression several shops in my area (Charlotte-Metro) would be able to work on it. They won't even get near it.. I've tried doing it myself and I do not know enough about this subject, even after searching the form to feel comfortable enough to hack into wire and do it myself. Does anyone know any shop in my area where I can drop it off for the weekend and at a very reasonable price.. I give up
Car: 1990 300e 2.6
System Wanted to be installed: Viper 5301
Places That Have Said No:
Car Electronics Specialist Shop across street from EuroWise
It might be a little tough to find a shop willing to install a system that you have purchased from another source. They are taking on a lot of liability for very little gain and no recourse in the event of disaster. Suppose for instance, the keyless entry system is defective, causing a meltdown in your car's electrical system. As a customer, You would expect your car to be repaired at the expense of the responsible party (not unreasonable). The installer would blame the keyless entry manufacturer/importer, The manufacturer would blame the installer. in the end, the manufacturer/importer, who is probably an online vendor based in China would be untouchable, and the installer would likely end up paying for the repair either as a goodwill gesture or as the result of a lawsuit. On the other hand, if the installer is supplying the keyless entry and the same disaster strikes, the installer has recourse with the supplier or should accept full responsibility without question if he gambled with a sketchy supplier. You may pay a little more for the installer supplied unit, but that's the price you pay for a properly executed and guaranteed install.
You are doing this without disconnecting the battery???
At first I had the battery disconnected, then connected it with the issue of the wires heating up, so then I unhooked the battery, removed all the wires and then put the battery back and tested the wires.. My thought was that such a sudden charge to the wires may have been to much at the time...
At this point I've seen many posts, some saying you would need relays and the one from PeachParts.
I Just want keyless entry, nothing fancy at this point.
I definitively get why some shops are hessitant to help out with the older car..
Some keyless entry units may require relays when installing it on a vacuum operated central locking system. There are key less entry units with internal relay in the unit itself. Generally, in it's simplest form, you just need to identify 4 wires; lock, unlock, power and ground.
Do a search, understand vacuum locking system, identify wires and its functions before you splice in the keyless entry system. It's not as complicated as it may seems.
You may need to test the functionality of your new key less system because you may have shorted or fired the controller. Installing a non-functioning unit can be very frustrating.
IMO, keyless entry is a dicey attempt on MB cars that did not come with it. Keyless entry was available as an option on non-US spec cars, but then you're stuck with expensive key replacements and programming costs from the dealer.
Truth be told, nothing wrong with a plain old key. At least nobody unauthorized can unlock the car using a frequency generator or without smashing glass.
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