I notice the smell after i've been driving it pretty hard or for long periods of time for the most part. I'll check it out, any way you can post some pics or give more detail on the plug? Thanks.

 

Condition
19-05-03, April 8, 2005
Coolant Leak or No Heat in Passenger Compartment From HVAC System[/align]
Technical Background










•
Customer concern of loss of coolant, but no leak in cooling system can be found.



•
Customer concern of no heat or noticeable drop in heat output in passenger compartment from HVAC system when engine at idle.[/align]Both concerns may be caused by a coolant leak from plastic plug.






Plug is installed in engine cylinder block near connection for thermostat housing (arrow).[/align]
Production solution
N/A[/align]
Service
Other than loss of coolant, a leaking plug can cause air to enter into the cooling system and reduce the effectiveness of the passenger compartment heating system.




•
Cooling system MUST be tested for leaks with engine cold (below 32°F / 0°C) (see Repair manual Engine Mechanical, Group 19 - Coolant system, “Cooling system, checking for leaks�).[/align]Tip:
The leak from this plug usually occurs only when the engine is cold (below 32°F / 0°C).
If cooling system is tested for leaks with engine warm or hot:




•
Leaks from this plug may not be detected.[/align]Tip:
Coolant leak from this plug can be sometimes misdiagnosed as a leaking coolant thermostat housing. Always carefully inspect suspected areas to detect the actual source of the leak.




•
Carefully inspect area where plug is located.[/align]If the plug is found to be leaking:




•
Remove plug and replace O-ring.⇒“ Required Parts and Tools� [/align]



•
Remove sound insulation below engine.



•
Drain coolant (see Repair manual Engine Mechanical, Group 19 - Coolant system “Cooling system, draining and filling�).



•
Remove upper engine cover.



•
Unfasten coolant reservoir and move to aside.[/align]Electrical connector of coolant level sensor must be unplugged.
It is not necessary to remove coolant hoses from coolant reservoir.




•
Remove oil dipstick bracket bolts (2x).



•
Carefully remove upper dipstick tube (orange plastic)[/align]Ensure that the O-ring on lower steel tube is not lost when tube is removed).




•
Remove bolt from plastic plug.



•
Remove plastic plug from engine block and replace O-ring.



•
Reinstall plastic plug and secure with bolt to engine block.[/align]Fastener torque = 23 Nm.




•
Reassemble dipstick tube and coolant reservoir.



•
Use the VAS 6096/1 to refill and bleed the cooling system (see Repair manual Engine Mechanical, Group 19 - Coolant system “Cooling system, draining and filling� for details and approved coolant antifreeze).[/align]When refilling engine with coolant:




•
Always ensure that any trapped air is bled out of cooling system (including heater core).



•
Recheck for leaks on cooling system (see Repair manual Engine Mechanical, Group 19 - Coolant system, “Cooling system, checking for leaks�).



•
Reinstall sound insulation below engine.



•
Reinstall upper engine cover.[/align][/align]
Warranty







When procedure applies to vehicles within the New Vehicle Limited Warranty, use the following:[/align]


Claim Type:[/align]

W2[/align]


Part Identifier:[/align]

1951[/align]


Damage Code:[/align]

1951 50 ___* 2[/align]


Labor Operation: Includes all operations necessary to complete repair[/align]

1951 5500 120 TU[/align]


Claim Comment: Input “As per Technical Bulletin A190503� into comment section of warranty claim[/align]

) * Code per warranty vendor code policy[/align]
Required Parts and Tools
O-ring - Part No: N 903 653 02
Tip:
Part numbers listed in this bulletin are for reference only. Always check with your Parts Dept. for the latest parts information.




©2006 Audi of America, Inc. All rights reserved. Information contained in this document is based on the latest information available at the time of printing and is subject to the copyright and other intellectual property rights of Audi of America, Inc., its affiliated companies and its licensors. All rights are reserved to make changes at any time without notice. No part of this document may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, nor may these materials be modified or reposted to other sites, without the prior expressed written permission of the publisher.[/align][/align]

 

I dont think mine is a coolant leak.. it went away for a few days and it came back today.. i have no clue where it is coming from.. i only have it whenmy turbo spools up.. the harder it spools the more of a smell i get..

 

Ihave an exhaust smoke smell ... it not a smoke,[:'(]its only smell like burnt fuel... it is very heavy inside the saloon .. my clothes affected ...
what is the reason

 

#1 - you brought back a dead post that has nothing to do with your problem besides them both being a smell in the car.

#2 - WTF are you driving - year, engine -

 

Another post.....




Raised from the dead!

Johnny wrecked this car a while back, think he was parting it out.

 

^that would definitely cause a bad smell

ah - Johnny used to be all Beef - now look at him[8D]

 

Lol! LMFAO