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Old 21st February 2017, 21:06   #1
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Default Audi Q5 3.0L TDI Quattro: 10 months up, still won't start!

Vehicle Details:

Audi Q5 3.0 TDI Quattro

VIN No- WAUZLA8R8BY700227

Vehicle Breakdown History:

April 2016

Vehicle failed to start (Engine Cranked but didnt get fired up) after parking overnight at a farmhouse and we took it to a local workshop (Wheelspin, Coimbatore) which is where we gave it for periodical service.

After initial inspection, workshop person said that there was an issue with the Fuel Pump and asked time for getting a replacement.

June 2016

Days, Weeks and after 2 months of waiting, there is no proper answer from the workshop about the status of the vehicle. We lost patience and took the vehicle to Audi Coimbatore Service.

After inspection, Audi Service said that the entire fuel line and the Fuel pump assembly has to be changed and gave a quote of Rs 6.5 Lakhs for the repair.

At this point, a mutual friend suggested another Coimbatore based workshop who is well versed with imported vehicles. We said to Audi that we are taking the car out as the repair estimate is high.

From July 2016

We brought the vehicle to Jagans Workshop ( he was with Skoda Service previously). After inspection he said there is no need to change the fuel lines (instead he said he will clean it and fix it) and said that he will source a Fuel Pump.

After a month or so, he sourced a used Second hand Fuel pump and tried it, but vehicle failed to start.

He then went ahead and imported a new BOSCH OEM Fuel Pump and tried it. Vehicle didnt fireup with the new pump. Along with a fuel pump, he changed 3 Fuel Injectors and LHS Fuel Rail

Feb 2017

After agonising followups and waiting, wehicle is still with workshop. Still unable to diagnose the issue.

Note: The Vehicle does not throw any error codes and ECM too was working well.
Attached Thumbnails
Audi Q5 3.0L TDI Quattro: 10 months up, still won't start!-img_20170220_192412.jpg  

Audi Q5 3.0L TDI Quattro: 10 months up, still won't start!-img_20170220_192905.jpg  


Last edited by GTO : 22nd February 2017 at 11:50. Reason: Innumerable language errors
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Old 22nd February 2017, 11:58   #2
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Default Re: Audi Q5 3.0L TDI Quattro: 10 months up, still won't start!

These cars are extremely complex in nature. It's mandatory for their owners to know a good independent workshop (once the car is out of warranty). This point isn't optional - it's compulsory.

You mentioned this happened at a farmhouse. Was the vehicle topped up at a highway fuel pump? Could be adulterated diesel that's the culprit here. You must top up the tank at a trustworthy pump in your city before hitting the highway. These cars anyway have such long tank ranges that, for 9/10 trips, you can come back home without refuelling.

Unfortunately, it does appear that all of these workshops have done a lot of trial & error with the car...but don't have any results to show for it. I can only imagine the torture she's gone through, having been opened up & reassembled like that.

Would suggest asking around and taking her to someone who really understands these cars. If not, flatbed it to Bangalore where you'll get a lot of technical expertise.
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Old 22nd February 2017, 12:30   #3
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Default Re: Audi Q5 3.0L TDI Quattro: 10 months up, still won't start!

It's impossible to not diagnose why a car won't start, over 10 months. That too, for a car that was running perfectly fine just a short while before refusing to start.

There is some information missing here. How did the workshops arrive at a diagnosis of fuel pump failure? What else was checked? Was quality of diesel in the tank tested for contaminants? What about other factors like the electricals, engine internals?

Wondering: Do Audi fuel pumps have some kind of coding to link it with the VIN of the car, and any other fuel pump won't work? I'd guess it would throw an ECM error too, in that case.

Last edited by SS-Traveller : 22nd February 2017 at 12:37.
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Old 22nd February 2017, 12:43   #4
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Default Re: Audi Q5 3.0L TDI Quattro: 10 months up, still won't start!

Hope the fuel was completely drained and refilled? Like GTO mentioned, hope it is not a fuel quality issue.

What kind of diagnostic software and hardware is the garage using? Is it the right one for the make and not a generic or mobile based stuff. These cars are very difficult to diagnose without proper access to the scanning software.

Trial and error method am sure the garage also would have done, first would be to check if the fuel is getting pumped from tank and filters are aok. Then move on to rail and take a reading of pressure, then to injectors. That is pretty much one can do. Next would be to rule out any other electrical or sensor based issue (but then again that would show as an error).

How old is the vehicle and how much has it done?

Few stuff gathered from web search

http://www.vwaudiforum.co.uk/forum/s...759#post936759

http://www.vwaudiforum.co.uk/forum/s...604#post974604

So it can be a coolant sensor, the engine immobilizer, crank position sensor and lot more including fuel pump and rails. Check one by one and see if it helps.
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Old 22nd February 2017, 13:39   #5
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Default Re: Audi Q5 3.0L TDI Quattro: 10 months up, still won't start!

Have you tried out a garage by the name KR Auto Care in Coimbatore. When I was looking for a used BMW 530d, a seller was claiming that KR Auto Care does a good job in servicing premium cars and his 530d was regularly serviced there. I don't have any personal experience though.
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Old 24th February 2017, 14:55   #6
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Default Re: Audi Q5 3.0L TDI Quattro: 10 months up, still won't start!

Quote:
Originally Posted by ece2k2 View Post
Have you tried out a garage by the name KR Auto Care in Coimbatore. When I was looking for a used BMW 530d, a seller was claiming that KR Auto Care does a good job in servicing premium cars and his 530d was regularly serviced there. I don't have any personal experience though.
I would recommend the same. KR specializes in BMW's but I guess they might be able to help with VAG too.

Also do check out CAI at Lakshmi Mills. No personal experience with them, but I've seen them working on a lot of off beat imports, and my friends mercs (w140 & 220) are maintained there.
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Old 27th February 2017, 19:52   #7
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Default Re: Audi Q5 3.0L TDI Quattro: 10 months up, still won't start!

Sorry for the delay in responding.

Quote:
Originally Posted by GTO View Post
These cars are extremely complex in nature. It's mandatory for their owners to know a good independent workshop (once the car is out of warranty). This point isn't optional - it's compulsory.

Y
Thanks GTO for the reply. Vehicle was fuelled up in a reputed fuel pump only which we regularly use. We faltered badly on choosing the independent workshop for servicing the vehicle. Could you please suggest a independent Workshops in Bangalore where we could take her. We have tried with 3 workshops in Coimbatore but no one seems to diagnose the issue.

Quote:
Originally Posted by SS-Traveller View Post
It's impossible to not diagnose why a car won't start, over 10 months. That too, for a car that was running perfectly fine just a short while before refusing to start.
Hi SS-Traveller,

After the Independent workshop whom we left the car after break down didn't give any proper insights, we took the car to Audi Service and they were the one who said Fuel Pump had seized due to fuel contamination. They didn't test the Diesel in the tank for fuel contaminants. Audi Service only said contaminants is the reason for fuel pump seizure and gave the quote to change fuel lines and faulty fuel pump.


Quote:
Originally Posted by Jaggu View Post
Hope the fuel was completely drained and refilled? Like GTO mentioned, hope it is not a fuel quality issue.
Hi Jaggu,

Thanks for the reply. Vehicle was 2011 Manufactured, We bought the vehicle at 65K at the odo as Pre-owned. Vehicle broke down @75k at the ODO.

In-dependant workshop uses a Hardware based diagnostic tool ( i dont have the details now). In all the trial diagnosis we checked Crank Sensor, Fuel pump ( imported a new one) and changes LH side Rail. We did not check at Engine Immobiliser. Engine and Electrical are in perfect shape.

Quote:
Originally Posted by ece2k2 View Post
Have you tried out a garage by the name KR Auto Care in Coimbatore. When I was looking for a used BMW 530d, a seller was claiming that KR Auto Care does a good job in servicing premium cars and his 530d was regularly serviced there. I don't have any personal experience though.
Quote:
Originally Posted by JayD View Post
I would recommend the same. KR specializes in BMW's but I guess they might be able to help with VAG too.
Thanks. I will check with KR Auto care.
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Old 27th February 2017, 23:12   #8
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Default Re: Audi Q5 3.0L TDI Quattro: 10 months up, still won't start!

Check if this interests you:
http://www.team-bhp.com/forum/indian...bangalore.html (Bosch opens company owned & operated service centre in Bangalore)
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Old 28th February 2017, 01:43   #9
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Default Re: Audi Q5 3.0L TDI Quattro: 10 months up, still won't start!

Quote:
Originally Posted by Ecstasy_Drive View Post
Could you please suggest a independent Workshops in Bangalore where we could take her. We have tried with 3 workshops in Coimbatore but no one seems to diagnose the issue.
You could try SK Karzone (http://www.team-bhp.com/forum/bangal...bangalore.html (Automotive Garage - SK Karzone (Jaya Nagar, Bangalore))). Have heard good things about them, and they treat Team-BHP members with special care.
Quote:
...Audi Service and they were the one who said Fuel Pump had seized due to fuel contamination. They didn't test the Diesel in the tank for fuel contaminants. Audi Service only said contaminants is the reason for fuel pump seizure and gave the quote...
Hmm... so that's the missing link. Hope you have the old fuel pump with you, to check if it has seized or not. Maybe there's nothing wrong with it, or maybe it's repairable.

Last edited by SS-Traveller : 28th February 2017 at 01:45.
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Old 28th March 2017, 20:17   #10
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Default Re: Audi Q5 3.0L TDI Quattro: 10 months up, still won't start!

Hi,
Just wanted to Enquire if you had tried out on a German Cars Specialised Garage named Candour Auto Tech, Trivandrum Kerala. If not, I would recommend to try your luck there. maybe they could help you out fire up the machine.

To my knowledge they recently solved and fired up a W140 S600 V12 which travelled pan India on a Flat Bed, which even the Mercedes Dealerships couldn't resolve.
And many other dealership dropped out Cars including BMWs Audis etc.
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