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Well my s1 stag's 4wd warning light is coming on of late, never seen it before. Car is still drivable, usually pulling over and switching her off and on solves it.

I recently put new tie rod ends in, replaced 2 tyres and got a wheel alignment. The 2 tyres I replaced are a different brand, but still the same size.

I did a search and saw some old threads suggesting wheel sizes could be the cause, but would any of the above works possibly have caused it?

If so what should I do? Is it something I should be trying to fix, or will it sort itself out?

Any help greatly appreciated.

Cheers.

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The obvious one is to check the level in the reservoir in the side of the boot. If you're real keen bleed the system (nipple at back of transfer box and another on top of diff) - just crack them open with the motor running. Try resetting the ecu (disonnect the battery and reconnect). Your different brand tyres may have the same nominal size but jack them up and measure the circumference and see if they are in fact the same.

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since you just changed tie rod ends, my guess is the steering is not centred properly.

if hicas thinks you are turning when you are actually going straight it throws an error.

when they did they wheel alignment did they adjust the steering wheel, or is it out of centre when pointing straight ahead?

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series one doesnt have hicas .

run a diagnostic on it . it will tell you exactly what it wants . it could be anything from low fluid to wheel sizes to any one of the sensrs dirty /failed . even tps signal . it your steering wheel centerd , ? attesa has a steering wheel sensor .

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when my 4wd light came on the car was undrivable, but do check for codes, the attessa ecu is a pitta to get to but makes it all worthwile in the end,

my problem was the TPS, i swapped the whole throttle body over from another motor i had and its all good,

let us know how you go

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