Audi A4 1.9tdi 2004 won't start.

kilkenny31 · 21-08-2014 05:19PM

George Dalton wrote: »

What we usually recommend is taking out all 4 and sending them away for testing. Then you know exactly where you stand.

Ok thanks for your help.

ardle1 · 21-08-2014 05:35PM

George Dalton wrote: »

The symptoms don't match for a loom issue.

The fault codes are also different for a loom problem vs injector problem.

Eh no, the code op got, would also appear for faulty loom, now I don't understand why it won't start,... Unless the main loom plug where it enters the 'rocker' is not tight or and not making contact at times! Anyway very frustrating for the op..

George Dalton · 21-08-2014 08:08PM

When the loom is faulty the ECU detects the fault and shuts off the injector that is affected so that you end up running on 3 cylinders until the next time the ignition is cycled. Generally a faulty loom doesn't cause a misfire when the engine is cold only when it warms up. Faulty looms also never cause starting problems whereas bad injectors do. If you read back through the thread the op says that the car sometimes won't start and has a running issue which is worse when cold but better when warm. In other words the symptoms don't match a loom fault.

Incidentally the fault that is logged for a faulty loom is not the same as the one logged for a faulty injector. Unfortunately we don't know what code is logged in this case because the OP never told us the exact code, just gave a vague description.

kilkenny31 · 24-08-2014 12:59AM

The fault reads like this. 16685 cylinder one missfire detected p0301 - intermittent

George Dalton · 24-08-2014 09:10AM

That's going to be an injector fault. If it was a loom problem the code would be:

18074 - PD Unit Injector; Cylinder 1 (N240): Electrical Malfunction

dr.fuzzenstein · 24-08-2014 10:00AM

Chimaera wrote: »

Start by looking for leaks in the fuel system. It sounds like it's losing prime - prolonged attempts at starting are bringing fuel up and it eventually starts for you.

After that get it scanned with a VAG specific diagnostic tool.

That!
I can't believe no one picked up on this.
Had the exact same symptoms with my cmax and the garage wanted to swap out injectors and fuel pump, costing me a fortune.
Took the car to the Ford main dealer and he diagnosed the problem in 5 minutes, fuel line drawing air. Before doing something silly like ripping out injectors and looms, look at the fuel line.
A lot of garages have no clue about diesel fuel systems and instead of logical diagnosis just start ripping out the most expensive bits first.
Always remember: go low tech before going high tech, you can save yourself hundreds.

josephsoap · 24-08-2014 02:23PM

kilkenny31 wrote: »

Hi, been running fine the past two months but it happended again over the weekend, got the car scanned, saying a intermittent missfire in cylinder 1. Mechanic thinks its an injector problem. Anyone else have an opinion, would really appreciate it.

How much milage is on your A4?

kilkenny31 · 25-08-2014 09:35PM

josephsoap wrote: »

How much milage is on your A4?

About 250000 kms.

kilkenny31 · 15-09-2014 07:53PM

What is the cheapest i could get this repaired for. The injector i mean. I just want a quick fix. Ive decided to purchase a new car in janurary.
Im going to trade in my current car. I just want to get the one injector replaced or repaired. Called a garage about getting on reconditioned and they said it would be around 300 euro. Seems expensive, pretty sure iv'e seen reconditioned ones on eBay a lot for cheaper.

Bpmull · 15-09-2014 07:58PM

kilkenny31 wrote: »

What is the cheapest i could get this repaired for. The injector i mean. I just want a quick fix. Ive decided to purchase a new car in janurary.
Im going to trade in my current car. I just want to get the one injector replaced or repaired. Called a garage about getting on reconditioned and they said it would be around 300 euro. Seems expensive, pretty sure iv'e seen reconditioned ones on eBay a lot for cheaper.

300 seems mad price for one reconditioned injector unless maybe they were doing them all. I thought you could buy a brand new one for around 150-200 euro. Unless there is somewhere decent reconditioning the injector it's very much hit and miss as to whether it will fix the problem. Unless there mad money I'd personally just buy a new injector and get it coded in and fited at least it won't go wrong that way.

George Dalton · 15-09-2014 08:05PM

New PD injectors are over €600 each ex VAT.

€300 would be about right for a recon injector including labour.

Bpmull · 15-09-2014 08:12PM

George Dalton wrote: »

New PD injectors are over €600 each ex VAT.

€300 would be about right for a recon injector including labour.

I was way out there so. That would make the recon quote a lot more reasonable as it wouldn't really make sense to buy a new injector at that money.

kilkenny31 · 15-09-2014 08:14PM

George Dalton wrote: »

New PD injectors are over €600 each ex VAT.

€300 would be about right for a recon injector including labour.

When you say labour do you mean removing it and refitting it. When i was talking to them it sounded like it doesn't.

George Dalton · 15-09-2014 08:16PM

Yes. The actual injector recon itself should be around €225 inc VAT.

kilkenny31 · 15-09-2014 08:25PM

George Dalton wrote: »

Yes. The actual injector recon itself should be around €225 inc VAT.

Ok he said it would be 280 + vat not sure if that includes removing and refitting. Like to get it sorted soon, the car didn't start this morning, frustrating because it won't start with a push. It needs to be towed to start.

kilkenny31 · 15-09-2014 08:37PM

Do you know if its a Bosch injector?

George Dalton · 15-09-2014 08:39PM

Yes they are Bosch injectors.

kilkenny31 · 16-09-2014 03:45PM

George Dalton wrote: »

Yes they are Bosch injectors.

Thanks for your help pal. It's great having somewhere like this to come too to ask a few questions.

George Dalton · 16-09-2014 04:29PM

No problem at all. Hope you get sorted out without too much bother!

Tail Docker · 16-09-2014 07:54PM

George Dalton wrote: »

Most of the time with symptoms like that on a PD it's an injector issue.

It's usually the rubber seals in the gallery above the injectors, they look fine on inspection but are in reality weeping under pressure. They cause hard starting, often poor running and sometimes smokiness. Hard fault to diagnose too as it comes and goes according to heat/cold etc etc. Replace the seals. Garages often replace the injectors thinking that's the fault..it's usually the seals, which are buttons..

kilkenny31 · 16-09-2014 09:21PM

Tail Docker wrote: »

It's usually the rubber seals in the gallery above the injectors, they look fine on inspection but are in reality weeping under pressure. They cause hard starting, often poor running and sometimes smokiness. Hard fault to diagnose too as it comes and goes according to heat/cold etc etc. Replace the seals. Garages often replace the injectors thinking that's the fault..it's usually the seals, which are buttons..

Ok ill get my mechanic to check the seals first. If not I'm guessing it will be the injector.

Audi A4 1.9tdi 2004 won't start.

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