BMW warning lights...

[Sambmw528]

Hi everyone, I’m the owner of an e91 325d touring. For the most part, it runs like a dream. 155k miles, stage 1 tune to 319hp and 696nm on dyno and it pulls like a train. During the winter months it’s been absolutely fine but periodically when the temperatures in the UK come above 20 degrees Celsius, I will get an ABS light or Tyre pressure light. It then goes off again when the weather cools.

Is there anything I can do to either eradicate this or to manage the issue? I haven’t been able to find anything mentioning this being a problem.
Thanks in advance!
Sam

[VeeTenM]

Might be just a dodgy ABS sensor, would get a garage to run a computer on it see if there are any fault codes

[Andy70]

If its the same set up as the petrol versions, which I'm sure it is, your ABS pump probably could be at fault. I had similar issues and took it to a company in Devon and they refurbed it and said it as quite common. First class service. This is just my opinion that maybe you could look into. Call a local ABS restorer maybe and see what they say. Best of luck! (controlunits.co.uk they are called, I'm sure they could help if you are local to them or not)

[Court_S]

I had similar on my other half’s 125i recently; ABS light, flat tyre warning and brake warning.

When I plugged Carly in the codes were for a rear wheel speed sensor which has been changed and no lights since.

[mike9009]

My E92, 330i had similar warning lights and it was the ABS pump giving grief. When mine did it the ABS wasn't working or traction and the power steering went lighter. It was intermittent t begin with but became more frequent in time (over about a month before I got mine refurbed)