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  1. BahnStormer77

    S4 engine 3.0 supercharged - P0235 MAP error

    FYI - Prices were pretty different: £60 on LLLparts, £40-£45 elsewhere for the same part number sticking to OEM.... and into the low 30's (e.g. FEBI Bilstein) / high 20's (NGK)... and even lower for lesser known brands.... Bosch works for me @ £90 for two, incl delivery :)
  2. BahnStormer77

    S4 engine 3.0 supercharged - P0235 MAP error

    The part is VW AG 038 906 051 J (BOSCH 0261230215) I'm going to replace the two at the top and hope I can get away without having to try for the one at the back, behind the engine.... unless anybody has tried this before and found that was THE one that wore out first?
  3. BahnStormer77

    S4 engine 3.0 supercharged - P0235 MAP error

    Nice site - it's like a modern version of VAGCAT! That said, it looks like a bit of a ball-ache to find the actual physical part in there - not their fault, there's a lot of parts on a lot of different cars and the supercharged V6 is pretty rare - especially in the UK (more common on the S4 / S5...
  4. BahnStormer77

    P0235 MAP sensor error

    Wiring certainly looked fine at the top, but I'll trace it down to make sure there's nothing obvious damaged. I'm also going down the thought process of it possibly needing new sensors: low mileage, but it is 11yrs old, so it could just be corrosion over time? I still have plenty of the...
  5. BahnStormer77

    S4 engine 3.0 supercharged - P0235 MAP error

    looks like the issue came back, very intermittently at first, but more consistently now :( I think I'll might try replacing those sensors entirely now.... if anybody has the part numbers?
  6. BahnStormer77

    P0235 MAP sensor error

    error seemed to come back after a few months :(
  7. BahnStormer77

    New member hoping to join the A6 Avant club

    Mine is a 2012 - the last of the supercharged V6 petrols :) It was before the "Tech Pack" version was released, but it came with the RSAP 3G connectivity MMI "Touch" (Audi Connect) system that was included in the Tech pack from about 2013 until the facelift. RSAP was absolutely awesome -...
  8. BahnStormer77

    New member hoping to join the A6 Avant club

    Mine came with the Audi Connect "MMI Touch" option (about £3k extra), but it's useless compared to Waze.... so £10 for a little air vent grill-mount next to the driver's door and I get a good "balance" (discreet, cheap and I have Spotify on BT audio and the latest Waze right next to my hand).
  9. BahnStormer77

    S4 engine 3.0 supercharged - P0235 MAP error

    I think I fixed it!!! Write-up in here.... https://www.audi-sport.net/xf/threads/p0235-map-sensor-error.425564/post-3779820
  10. BahnStormer77

    P0235 MAP sensor error

    Okay... I think I fixed this two weeks ago... read on if you want as I'm not certain if I'm FULLY out of the woods. I took off the two little "plastic" rails on either side of the engine (2x Torq, T27 IIRC).... and removed the two inlet manifold sensors on either side (2x Torq T30 IIRC). The...
  11. BahnStormer77

    S4 engine 3.0 supercharged - P0235 MAP error

    HMMM..... intake pressure sensors done.... I'm still getting the limp mode with each high rev pull, I'll need to find a time when the engine is a LOT cooler to try the MAP sensor since it is right down the back of the engine ("under the vacuum box" as per the video) :(
  12. BahnStormer77

    S4 engine 3.0 supercharged - P0235 MAP error

    I think the ones I'm after are also in that video, but he has actually already taken them out: "intake pressure sensor".... look easy to get to, so I might try to take them out and give them a spray first - MAP looks like a bit more hassle, but also just a couple of bolts/torq screws.... TBC on...
  13. BahnStormer77

    S4 engine 3.0 supercharged - P0235 MAP error

    Hmm... any how-to guides? I'm the definition of "all the gear, no idea".... I've got the tools and although I did lots of mech eng at uni, so I'm not mechanically clueless, but that only means I know the theory.... I then work out the rest as I go :s
  14. BahnStormer77

    P0235 MAP sensor error

    I'm hoping this one is on the right track: So I'm buying some of this: "Wynns WY29881 Petrol EGR Cleaner" - it says for cleaning the "air intake system, air flow sensors, inlet valves and EGR system" - so pretty much rebadged TB cleaner, but maybe less likely to have anything that would corrode...
  15. BahnStormer77

    S4 engine 3.0 supercharged - P0235 MAP error

    Many thanks - just had a quick look and that looks like what I've been getting.... my "top-down" guesswork based on that error after that I was just guessing a dirty/damaged sensors in the TB/intake manifold, so good to hear I'm on the right track! Just purchased some "Wynns WY29881 Petrol EGR...
  16. BahnStormer77

    P0235 MAP sensor error

    thanks for the feedback, car is supercharged... it is remapped, so it holds boost for longer (higher into the rev range), but it was like that for well over 5 yrs with no errors... I'm pretty certain that it is due to a faulty sensor.
  17. BahnStormer77

    S4 engine 3.0 supercharged - P0235 MAP error

    okay - I know, I'm necro-threading, but it is relevant: it is the same issue, but now rather than happening once a month, it happens every time I rev over about 5000rpm... does anybody know what sensors are in the intake manifold that might have failed?
  18. BahnStormer77

    Recommended battery for an A6 C7?

    The Bosch S5A15 105Ah was a straight swap for the "JCI" (Varta) that was in the car from new... boot lights, interior lights, courtesy lights (after the car is locked), etc are all working again now.... not driven anywhere, but I'm pretty confident Stop/Start will work too :) Notes for anybody...
  19. BahnStormer77

    Recommended battery for an A6 C7?

    One other note: Amazon was a great price and quick delivery for the S5A13, but Amazon reseller that was listed for the S5A15 - the that I needed - was going to be over a week to delivery and £50 more than the alternatives. https://www.batterymegastore.co.uk/ was cheaper and next day delivery!
  20. BahnStormer77

    Recommended battery for an A6 C7?

    Fortunately Amazon have a "collection" service for that battery and I was able to order the 105Ah spec battery that I have in the car already (Bosch S5A15 AGM battery - if anybody is interested). While checking VCDS, I noticed that as soon as the engine is off the battery drops to 11.7V within...