DavesTQA

Car will start immidiately when left overnight.
Car will start immidiately when car is hot.

Car can be a pain when left for 3-4hrs. it can
take up to 8-10 seconds of engine turning before start. Anyone else experiance this ?

2004 Audi Allroad. 52000 Klms...

Feuerstein

When hot the plugs aren't needed, when cold the plugs come on as they should, but when temperature is somewhere in between the system telling the plugs to come on isn't working? Does this sound reasonable?

Maybe some temperature sensor giving bad readings?

Never had that problem myself, so I'm really just speculating.

DavesTQA

Believe it or not the plugs only come on under 5°C. I have been thinking about trying a different ECU to see if it makes a difference... If only Q5 was out the Allroad would be gone. New Allroad still too expensive "Det veit du val"

Cheers

Feuerstein

Is there some other system that helps with cold starts and also causes the glow symbol to show? Or is it only the newer 180 hp that does without glow plugs over 5º?

New Allroad starts at around £56' for the 2.7TDI, I take it the price is much lower in the UK?

DavesTQA

over 5°C there is no preheating of the diesel. Mine is 2004 don't think there is much difference between earlier models apart from the camshafts on early 2.5 TDI's had excessive wear. A change in 2003 fixed that I'm told. 2.7TDI Quattro Tip is 800,000 NOK for a properly speced one.

m6rk

perhaps it's air in the fuel lines?

noore

HELLO EVERYBODY,

I HAVE BOUGHT MY AUDI ALLROAD 2.5TDI STEPTRONIC GEARBOX SINCE I YEAR AND IM GETTING A LOT OF TROUBLES WITH THE CAR. A COUPLE OF WEEKS BEFORE, IVE JUST CHANGED THE WATER PUMP. SOME MONTHS AGO I HAD A SEVERE BREAKDOWN WITH MY GEARBOX AND HAD TO OPEN CHANGE THE PUMP INSIDE AND COST SO MANY $$$$. NOW THE CAR IS LACKING POWER - I HAVE TO ACCELERATE A LOT TO GET IT MOVING, I REALLY DONT KNOW WHAT IS HAPPENING. THE MECHANICAL GUY WHO HAD REPAIRED THE GEARBOX LAST TIME IS TELLING ME WE HAVE TO OPEN GEATRBOX AGAIN AND CHANGE ALL THE DISCS. ONE THINK IM NOT UNDERSTANDING - SHOULD ONE SPEED NOT WORKING - IF WE PUSH TO MANUAL MODE ON 2 SPEED WE SHOULD BE ABLE TO DRIVE IT ANYWAY.. NEED YOUR ADVISE GUYS... PLS HELP ME FIND A SOLUTION CAUSE IM DESPERATE.

THANKING GUYS IN ADVANCE.

NOORE

pedranaman

Hello i have exactly the same problem with my allroad 2004 90k miles bau engine auto, did you ever sort this problem any advice greatly appreciated thanks john

Romario

Provide check of compression. If values will be less 27 bars - you need make a service of block heads. I mean all 24 valves must to be cleaned and machining (including valve guides и seals).
If compression values will be more than 27 bar - you need check revolution's of starter during starting. Stator of starter have a permanent magnets which can lose technical properties, especially when engine heated.
If it is true - you have two way.
1st - renew starter or stator of starter.
2nd - forget about it.

pedranaman

Hello thanks for your post. I think i might try replacing the starter first .I have replaced the collant temp sensor . i will let you know how i get on, many thanks for your help