Misfire after cambelt change on a4 3.0 petrol ASN

[arvydasxx]

Just bought this audi a4 2003 3.0 Quattro auto. Took it to my local garage to replace cambelt on it because it was due for one.. ,So they done it and now got misfire on cilinders 4,5,6, it is very slight and only noticeable on idle, also its running quite hot I think temperature gage sits on 90, but vcds shows 104

Done a scan and got this:

Friday, 03 October 2014, 19:34:11.

VCDS-Lite Version: Release 1.2
Control Module Part Number: 8E0 909 559 H
Component and/or Version: 3.0L V6/5V G 0003
Software Coding: 0011751
Work Shop Code: WSC 63351
VCID: 3A07B1EB3547
4 Faults Found:
16684 - Random/Multiple Cylinder Misfire Detected
P0300 - 008 - Implausible Signal
16688 - Shareware Version. To Decode all DTCs
P0304 - 008 - Please Register/Activate
16690 - Shareware Version. To Decode all DTCs
P0306 - 008 - Please Register/Activate
16689 - Cylinder 5: Misfire Detected
P0305 - 008 - Implausible Signal


Any help on this would be great
Thanks in advance

[zollaf]

now then, how did they fit the belt, did they use the correct timing tools or did they not ?

[arvydasxx]

Not to sure about tools he used, he done a cambelt on rs6 and b6 2.4 v6, but not a 3.0 v6, do you think its timing issue?

[arvydasxx]

Also there is a lots of pressure in my coolant tank

[arvydasxx]

is it safe to drive it back to him? he is about 10 miles away?

[zollaf]

pressure in coolant and a misfire on one bank is indicative of a a head gasket failure. i would not be driving it anywhere. get the aa or whoever out or get it towed to him but for goodness sake don't drive it.
a misfire alone on one side would sound like the cam is out of timing, but the coolant pressure adds another dilema.

[arvydasxx]

could it just need a correct bleeding? because he installed a genuine kit from tps with water pump, car was running perfect before it went into garage

[zollaf]

it could yes, but i doubt it, they bleed themselves. if it went in running correct,get on the blower to him and tell him you want it running right now. things do go wrong, crs do throw other faults whilst at garages but mechanics do also make mistakes. its how these mistakes are handled that count. tell him whats up and he should sort it out for you.

[arvydasxx]

I only done 15 miles in it since picked it up last night, definitely taking it back.. Thanks for your help, will update on this then get it back.

[arvydasxx]

Just bled it right and there is no pressure in cooling system no more, noticed engine management light flashed few times..