Hi All,

Well just received my VAG-COM cable from a mate today and ran a total scan of my 2002 TT Quattro 180bhp with dumpvalve (previous owner paid to be fitted) and it is reporting a fair amount of faults (see below).

Now the main problem i have having is that the coolant level is jumping up to 80C on the intruments as soon as i start the car from cold and goes up to red 130C+ within 5mins of driving where in fact the intstrument test i ran in VAG-COM showed 50C-80C so i presume that im not running the car too hot and that the intsrument is showing a false reading?! I have also just replaced the Green Temp.sensor for a brand new Green one and same readings on the intstuments.

Any guidance to my coolant temp. problem and VAG-COM faults appreciated as i only have the car a month and would like to get it running 100%

-------------------------------------------------------------------------------
Address 01: Engine
Controller: 8N0 906 018 AQ
Component: 1.8L R4/5VT 0001
Coding: 10710
Shop #: WSC 00726
TRUZZZ8N921022003 AUZ5Z0B0246047
5 Faults Found:
17608 - Boost Pressure Control Valve (N249): Mechanical Malfunction
P1200 - 35-10 - - - Intermittent
17705 - Pressure Drop between Turbo and Throttle Valve (check D.V.!)
P1297 - 35-00 - -
17535 - Fuel Trim: Bank 1 (Mult): System too Rich
P1127 - 35-10 - - - Intermittent
16804 - Catalyst System: Bank 1: Efficiency Below Threshold
P0420 - 35-10 - - - Intermittent
18010 - Power Supply Terminal 30: Voltage too Low
P1602 - 35-10 - - - Intermittent
Readiness: 0000 0000
-------------------------------------------------------------------------------
Address 17: Instruments
Controller: 8N2 920 950
Component: KOMBI+WEGFAHRS. M73 D02
Coding: 05444
Shop #: WSC 00000
TRUZZZ8N921022003 AUZ5Z0B0246047
1 Fault Found:
00668 - Supply Voltage Terminal 30
53-10 - Supply Voltage Too Low - Intermittent

-------------------------------------------------------------------------------
Address 22: AWD
Controller: 02D 900 554 C
Component: HALDEX LSC ECC 0010
1 Fault Found:
00526 - Brake Light Switch-F
27-10 - Implausible Signal - Intermittent

-------------------------------------------------------------------------------
Address 35: Centr. Locks
Controller: 8N8 962 267 C
Component: Zentralverrieg.,DWA D06
Coding: 06858
Shop #: WSC 01236
4 Faults Found:
01374 - Alarm triggered by Terminal 15
35-00 - -
01370 - Alarm triggered by Interior Monitoring
35-00 - -
01616 - Signal Wire to Interior Monitor
36-10 - Open Circuit - Intermittent
00956 - Key 2
09-10 - Adaptation Limit Surpassed - Intermittent


Any ideas??

Cheers,

G.

 

what valve are you running?

 

Hi cincy,

It is a Samco Sport..purple color. Any ideas? Sorry i have no clue about dump valves. Could it be damaging the engine?

Cheers,

G.

 

depends on the type it is. which one is it from these?

 

the DV code could have been stored from a possible stock dv going bad. this would also explain the upgraded DV.

 

That is a good point. You should reset the codes if you havent and then report the ones that return

 

Sorry the Valve is silver but the shroud is purple... here are pics of the dump valve and the readings im getting for coolant level from cold.

Dump Valve 1
Dump Valve 2

Coolant Level reading of TT when car off & cold
Coolant Level reading of TT when car started from cold
Coolant Level reading of TT when car running for 10 mins

Also ive noticed that the both fans at from of grill dont spin when car is idle?! Should they?

Cheers,

G.

 

That is actually a Baily's twin piston bov. Should be closed at idle and work fine. Not sure whats wrong with your car. I would go to vwvortex and put in the codes and see what people had to do to cure each of them.

 

ok thanks..good to know.. and people say the dual piston DVs are good so thats something at least. When u say goto vwvortex do you mean the forum for TT there?

Thanks again for the help mate as not only do i have all these faults, wierd temp. readings but my TT wont go into reverse and is stuck in my sloped drive and i have it less than a month! []

Ta,

G.

 

You should search the archives in the 1.8t section on there. All the codes are the same between both audi and vw. Here is the searchJust hit the drop down box, then hit T (gets you to the tech section) and the first one after that is the 1.8t section