Experienced my A2 driver side rear door not latching this morning for the first time ever. It's been a recurring issue on my A6 C5 driver door in frosty weather - just have to warm up the latch area for a few minutes and it will eventually shut again. Took 15 minutes today. Set off for work, ride feeling noticeably harder than yesterday - it was after a couple of minutes I noticed the air temperature - see attached image (and yes, I've just noticed the date is wrong too!). This is 5 miles from Dundee, at sea level, not up in the Highlands. We had freezing fog that was lifting in clear sunny weather, and all around the trees were covered in ice crystals - but it explained why the ride was rock hard, the slush was frozen and the door latch jammed open. I didn't notice the cold while I was heating the latch - I think that the air must have been very dry as it can be utterly Baltic around here well above zero when the air is damp. Webasto running non-stop at the moment - what a brilliant piece of kit. Running since December on a set of ex-Polo steel rims with 185/65/15 Continental TS850s that I got off Facebook for 60 quid a year ago (7mm tread! - maybe the best 60 quid I've spent!) - with these and my winter remap (*) Cosmo has been unstoppable over the past few days - very easy to drive without using the brake pedal at all, no untoward wheelspin and a nice drive all round.
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(*) just noticed
@depronman's post above - I overwrote my winter map onto the standard map half of the dual map (standard / enhanced) that Paul set up for me 18 months ago. So I have a low tune, and the AMF high tune in about 30 seconds-worth of ODB-reader plugging-in, instructing the ECU to swap over to the other code set and unplugging again (+ignition off and on again) - I normally swap these over with the wheel change, although did run the low map for longer a year back to see if I could confirm an overall improvement in fuel efficiency (it does appear to do so by 3-4mpg but I had a handful of multi-month repair jobs last year so didn't run the car long-term through a range of conditions).
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