TwistedPuppet

Car passed the MOT last week. YAAAAAAAHHHH.

Emissions went from too high to read to pass. Only thing was a binding rear brake. Bit fed up working on the car so I brought a recon caliper rather than dicking about with new seals etc.

Same MOT tester and garage but advisories :-

Last MOT rear discs worn etc. Slight play on inner steering joint.

This MOT all discs worn etc.

About a month apart and off the road the front discs have worn and the slight play in the steering has magically fixed itself!


If anybody has the same problem, I don't know for sure what fixed it.
Apart from testing nearly everything and cleaning here and there I did three things.
Changed upstream O2 sensor because Pscan results indicated it had a low switching frequency but new one read the same.
Changed coolant temp sensor because it was cheap and easy. Seemed the same.
Last thing I did was add some Snake Oil and that actually got results to my disgust.

Anybody guess what it was?