Just thought I’d let you know of my latest upgrades
My starter motor was on the fritz.. sometimes worked sometimes didn’t sometimes stuck on .. was planning on just replacing the solenoid but after some reading, found the S4 manual non turbo starter was supposed to be a straight swap.
I took the plunge and bought part number M1T70781 from Amazon for £100.14.. I thought if it doesn’t fit then it’s easy enough to send it back through Amazon
Well. It fits. Perfectly in fact. The only change is that the top hole on the S3 starter is threaded .. and the S4 is just a hole. The original stud is long enough to add a nut on the end so that solves that problem immediately.
It now starts perfectly every time. On the button.. and the starter even sounds smoother engaging.
I also took the opportunity to tidy up some wiring , relocate some relays and add a small 4 way fuse box to neaten up the bits iv added (alarm/immobiliser, headlight relays, fog light relay, under seat subwoofer, remote number plate)
I also upgraded the Live and Ground cables to 0 Gauge and replaced the cable from battery to engine bay fuses to 4 Gauge.
In doing this it seems to run smoother, the windows are so much quicker, and the lights are substantially brighter.
All in all spent less than £200 and it seems well worth it !
Eventually il upgrade the alternator and wiring .. but that’s another weekends plan .. maybe after finally plumbing in the Aircon unit
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