mk3 golf immo issue, anyone here able to shed some light

May 19, 2024, 11:56:06 PM

Hey guys, im assuming its a immo issue rather then faulty ignition barrel. Last week a customer gave me there mums old mk3 golf which has been sat we think 12 years.

When we 1st got the car to ours, i disconnected the king lead, so we could at least try cranking it. in which there was many of us there all doing something different and not just the 2 of us doing things in which we could later discuss. anyway we connected up the jump leads an we appeared to have a fully working cluster, petrol guage showed fuel, all the regular symbol lights popped up etc, we couldnt get the car to crank, after a few mins discovered a conlog fob with no batterys in the glove box, how ever 4 dead batterys i assume was found in ashtray, but also could be popped into a mount, with abit of working back an forth into the mount, a led seem to brielfly stay on the fob, there was how ever a red an orange flashing leds on the dash both flickering different times different patterns to them an should put the indiactors stopped flashing like it was being robbed or broke into(perhaps the leds also went out). an the car cranked, letting it turn a couple of times. connected the king lead back up. an decided to see if it would fire into life with what i expected to be vintage nail varnish in the fuel tank. how ever it was against my wishes to do this.

Sadly we couldnt seem to recreate what ever it was again to get the car to crank. deciding that perhaps jump leads possibly wasnt really good enough, were come back with a new battery tomorrow an some batterys for the key fob,

Tomorrow came, armed with batterys all round, power washer again at hand, hoover, just the 2 of us finally, one of us set about hoovering a dead mouse an its former nest up, while the other carried on power washing the body back to the original colour. time came to fit the car battery, we tried to crank it. but this time no flashing orange light on dash maybe not even the red one i also feel indiacators going like were robbing the car, but more strange to me i noticed the cluster symbols would flash up an go stright out this time when the ignition was turned on, i really feel they didnt do this previuosly becuase we knew it had fuel, an alot of it aswell, an now we deffo didnt see a fuel level. so we then put the new out of date batterys by 1 month we got from watch repair place into the fob, the led now works from the key fob it self. made no difference pissed around for awhile with the fob into its mount couldnt get it to do anything,

now im gonna leave some of the trivia happens out between that part an now, as i feel bares no help at all, But lead us to discover that the mouse inside had eaten 2 wires we traced on the alarm/immo so we conected them back up, no difference made,

We then traced further wires back towards the fusebox finding yet another dead mouse, taking the fusebox off we had no indiactors showing us anything (hazards would work if you put them at any given point in this) we found where the wires connected to the mainloom it self, really looks like oem install then aftermaket where it joins in to the main loom. now lifting the fusebox and twisting it to get it where we could see more of this or more of that, the indiactors would trigger off in the style of us stealing it again, looking at the cluster leaving the ignition switched on you can it briefly come on

alittle more fiddling under the fusebox area, some water trickled out the covered up loom

where immo/alarm wires join in, abit more fiddling an we noticed the ignition lights actually started to stay on longer before going out, an much longer, before now if you blinked you could almost of missed them coming on, an now you could time them if you wanted to, id say a few soconds at least

Was at this point we decided to stop play an come back another day, perhaps power washing the car we have forced water inside an now has a short till it drys ?

but i know alot of you guys would of had a mk3, even using them in conversions an may of come across something like this if not quite this. so kinda hoping maybe someone here could shed light, make suggestion of where to go next with it.

i have also said to my friend, its at this point we cant be playing with the car when everyone around us wants to join in, we dont know what anyone has done if they have done anything by mistake, an not only that we cant build a picture of what it is when something changes, Thou im confident no one has done something sinister, how ever they was all trying to be helpful, opening an closeing doors, an locking patterns in hope it might un immobilze etc etc. i dont thing the mice have eaten any wires from what we can see, just sadly the wires to the alarm head ran via the pollen filter in which they chewed up to get into the car it self. how ever the car did turn on day one, but dont now