All Things Mk5 > How to Guides / Troubleshooting

Problem after remap, possible engine dead

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Dan_FR:
1st issue.... Quantum.

2nd issue - Typical generic remap after a fault code scan if you're lucky. No checking for overboost or boost control, no logging, no fine tuning. map may work great on a newish car, but when you have a TDI PD with a VNT turbo filled with 120k+ miles of burnt on carbon deposits.... It rarely ends well

Engine has probably consumed a lot of the oil or it has been pumped in to the exhaust. Hope you've caught it before running the engine dry and doing damage. Good luck with it, and if you buy a re-con turbo, i hope you buy a decent one that is calibrated correctly or it'll be a further headache.

skard:
Agree about the turbo comments, generally a poorly turbo on a PD will not survive long with a remap.
I'd be looking at a good used engine for a worst case scenario.

The BXE common issue of a conrod rupturing the block, well you'd know if that was the case.

bigmunquazi:
I see, so most likely it was the turbo...that's what reading up sounded like to me too.

I turned it on like twice since the problem, first time heard knocking noise after a bit and off instantly, second time normal running sound then car/engine just turned off and wont turn over anymore...RAC man said its not the starter or anything, but also said broken turbo wouldn't do that, definitely something stopping engine turning over. He jacked the car up and was trying to wiggle the front tire back and forward and said that should turn over the engine but its getting stuck.

If turbo was broken, from what I just described, is there a chance that its still a simple replace turbo job or would the engine be instantly gone if any broken bits got inside (and hence it wont turn over now)? Worried, couldn't get ahold of recovery guys today so waiting another day. I'm just really hoping that there's a chance my entire engine isn't finished, more than double the bill of replacing turbo... :confused:

Cheers for the insights so far guys.


--- Quote from: StuF on May 22, 2015, 05:40:20 pm ---Sounds like turbo to me too - 128k running standard power no issues, remap that ramps up the boost and pop!
Whereabouts are you? Think the bill from the garage will be pretty spectacular though

--- End quote ---
London.


--- Quote from: Dan_FR on May 22, 2015, 08:23:56 pm ---1st issue.... Quantum.

2nd issue - Typical generic remap after a fault code scan if you're lucky. No checking for overboost or boost control, no logging, no fine tuning. map may work great on a newish car, but when you have a TDI PD with a VNT turbo filled with 120k+ miles of burnt on carbon deposits.... It rarely ends well

Engine has probably consumed a lot of the oil or it has been pumped in to the exhaust. Hope you've caught it before running the engine dry and doing damage. Good luck with it, and if you buy a re-con turbo, i hope you buy a decent one that is calibrated correctly or it'll be a further headache.

--- End quote ---
Are Quantum maps not good? I read lots of good stuff on trust pilot and then just went to cheap nearby remapper part of quantum network as it was about half the price of an AMD tuning remap which was other one I was looking at...I guess the saving might have cost me a lot more in the end  :scared:

ed30Lewis:
Sounds exactly like what happened to me on my old derv.

The turbo blew up in the petrol station! Filled the whole garage with thick smoke and left a massive oil patch on the floor. People were running away as they thought the car was going to blow up and take the BP garage with it. Tried turning the engine off and it continued to run at about 3.5k rpm with the keys in my hand. Had to stall it in third to get the engine to shut down (Was burning away all the oil). Fire engine then turns up :signLOL:

Fixed it with a turbo replacement, flushed the intercooler and cleaned all boost pipes. Was as good as new after.  :happy2: But it was a very time consuming job.

Anyway, hopefully you get it fixed and it doesnt cost too much!  :happy2:

Scottymon:

--- Quote from: ed30Lewis on May 23, 2015, 08:45:49 am ---Sounds exactly like what happened to me on my old derv.

The turbo blew up in the petrol station! Filled the whole garage with thick smoke and left a massive oil patch on the floor. People were running away as they thought the car was going to blow up and take the BP garage with it. Tried turning the engine off and it continued to run at about 3.5k rpm with the keys in my hand. Had to stall it in third to get the engine to shut down (Was burning away all the oil). Fire engine then turns up :signLOL:

Fixed it with a turbo replacement, flushed the intercooler and cleaned all boost pipes. Was as good as new after.  :happy2: But it was a very time consuming job.

Anyway, hopefully you get it fixed and it doesnt cost too much!  :happy2:

--- End quote ---

 :laugh: :happy2: :drinking: :grin:

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