D402

Perfect timing posting that, thank you! I thought the 45 degree jet was caused by a partial blockage and this afternoon's job was going to be to clean it out!

Started getting a loud noise at high revs recently, sounds like a resonating heat shield . Had a poke around under the bonnet and found that the engine cover wasn't fully clipped down. Sorting this out seems to have cured it 😀 Also tightened a loose bolt on my motorcycle which I hope fixes a noise on that too, a good day!

Great diagnosis, did the dashboard temperature gauge behave normally despite the faulty sensor?

I applaud your efforts! If you still don't get a satisfactory response, you could try https://www.gov.uk/vehicle-recalls-and-faults/report-a-serious-safety-defect

That's not a part number, it's the material specification - Polyamide 66 with 25 % glass fibre. Genuine only for these parts it seems.

I have a moth in mine, and a huge caterpillar crawled out of the headlining on the first warm day after I got the car. No amount of shaking the tail lamp would shift the moth, the caterpillar made its own way out. I wonder if they were related...

The evaporator could be freezing up and blocking the air flow. When you switch the A/C off, it melts and drains away so the system works again for a while. AI tells me this can be: blocked cabin filter so there's not enough warm air coming in to keep the evaporator clear blocked A/C drain - check there is a puddle of water under the car when you park up on a hot day low refrigerant pressure so the evaporator has to get below freezing to achieve low enough air temperatures or many possible A/C system component failures

Do you have the oh-so-reliable air quality sensor under the scuttle panel?

@PJGallagher Have you changed any bulbs to LEDs? This can have weird side-effects including the car not powering down properly and draining the battery.

You're absolutely right and there's nothing special about the Superb, the problem is that most garages can't be bothered to adjust both tie rods so that the steering wheel is straight. To be fair, it's not that easy to judge the straight-ahead position of the steering wheel when you're not driving. I corrected my own in the end! I have had to have the radar re-calibrated after replacing the front shocks, but never after alignments or new tyres.

Sketchy for sure, but it worked for a couple of people!

Looks like it can be done with an extension cable from one of the car's antennae, see the reply from Kajetanski. Good luck!

This might help:

I suspect that the short drives and cold starts don't create the conditions where the solenoid is actuated so the ECU clears the fault after three cycles without the fault being detected. You said that the replacing the solenoid did not resolve the fault. This suggests that there was never a fault with the solenoid so the technician moved on to check the wiring, found a fault and bypassed it which initially solved the problem. Next step is definitely to check the wiring again as this was found to be faulty before.

First thing I'd check is the recently installed wiring bypass.