Had the same problems one year ago, -8 degrees outside, after fitting a new! battery, all problems (also injectors) are away. Shows me: in the TD6 there must be installed a new battery each two years, the old one always good enough for some cars, which will be shipped to africa  L405 SDV8 2017 + Lancia Flavia Coupe 1964 + RRS L494 3.0 SDV6 + C220CDI Convertible 2021

Latest.

Put battery on charge last night (It's only a year or so old) to make sure it was fully topped up.

This evening I reset any faults with my IID tool then tried to start car. Starter motor turned engine at full speed for half a minute. I tried 2 more times but still not starting.

I plugged my IID tool back in and had the following faults. Wording in brackets is what I have discovered on internet.


ECM - ENGINE (DDE4)

3505 - UNKNOWN (Glow Plug System)

1260 - UNKNOWN (Delivery Pump Control System)

09F6 - UNKNOWN (Cant find code meaning)


TBOX - TRANSFER CASE

5212 - BATTERY UNDERVOLTAGE


LCM - LIGHT CONTROL

C-ECU EEPROM FAULT


I/P INSTRUMENT PACK

BD-EBV FUNCTION ABS

Any thoughts guys?

By the way I am not sure if the "under voltage" fault on Transfer box is battery voltage or an internal voltage in the box (if that makes sense). I am not get any faults that would normally suggest a low battery e.g. HDC inactive or Air suspension inactive etc. No longer FF owner but still interested. Present car Jaguar XE
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Previous car Td6 SE
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Previous LR- Disco 300TDi Auto

I'm looking at 1260 Delivery Pump Control System, possibly along with the LCM eeprom fault. For these purposes you can ignore all the others. For me still pointing towards the fuel rail wiring.....


A useful page ? :http://www.autoelectrics.net/diesel_engine_faults.html .
Experience is the only genuine knowledge, but as time passes, I have forgotten more than I can remember
Volvo V70 P2 2006 2.4 Petrol 170bhp Estate SE
MG Midget Mk1 1962

Previous: L322 Range Rover TDV8 3.6 2008; L322 Range Rover TD6 3.0 2002; P38A Range Rover V8 1999

Thanks for that Joe. Im not very savvy on wiring etc. My next route will be an auto electrician I guess. No longer FF owner but still interested. Present car Jaguar XE
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Previous car Td6 SE
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Previous LR- Disco 300TDi Auto

Sounds like an injector. I have just replaced two in my TD6

Try a shot of ether and it should start. To diagnose which one(s) are faulty...remove the leak off pipes at the top of the injectors and clamp off the return line at number 1 injector. Start the engine(with easy start if needed)...the injector(s) which are pumping fuel from the leak off aperture are your culprits...it normally takes two as the system can tolerate one faulty one.

Get your faulty units overhauled...normally £100 plus VAT...refit...and drive! 2008 Range Rover TDV8 435,000kms
2015 Range Rover L405 SDV8 Autobiography


2008 Ford Focus1.6 tdci Titanium DPF deleted

OK, it has been a while since I started this topic, as I decided to take the car off the road for a few months (its mainly used as a weekend run-around). This week I decided to try to get the car going again.

I changed the inline fuel pump as it was a cheap item. No joy.

So I had an auto electrician run his test box over the car.

The following faults appeared.

P09F6 - Rail Pressure.

P1260 - Pre-Fuel Pressure Control

He suggested that the fault was the In-Tank fuel pump. However my belief is that this tank only moves fuel from one side of the tank to the other. Is that correct? Or does it actually affect the fuel pressure?

I am actually getting fuel to the filter but I don't know at what pressure. No longer FF owner but still interested. Present car Jaguar XE
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Previous car Td6 SE
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Previous LR- Disco 300TDi Auto

Did you not try starting it on Easy Start as suggested? 2008 Range Rover TDV8 435,000kms
2015 Range Rover L405 SDV8 Autobiography


2008 Ford Focus1.6 tdci Titanium DPF deleted

please what ever you are doing consider this

I had the TD6 engine in my bmw and had this problem exactly as you describe 4 times in 5 years. Every time it was a failed injector. If you can start it with" easy start" direct into the airfilter and then it runs ok its defo an injector. The test is a leak off test where they put a pipe and small bottle on each injector and turn the engine over , this will tell if any injectors are not delivering the huge pressure needed for initial firing up

My garage mis diagnosed the problem putting in new looms and new pumps as the failed injector throws up all sorts of other codes

do the leak test ( different garage charged me £50) buy a ebay 2nd hand injector and if its that you can always buy a recon injector after.

I did try it with easy start a while and it didn't work, but I didn't want to try for too long as I have read a few horror stories.

I will give it another go this week. No longer FF owner but still interested. Present car Jaguar XE
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Previous car Td6 SE
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Previous LR- Disco 300TDi Auto

Tried to start it several teams while spraying Bradex easy start strait into the air filter. The engine caught briefly and run roughly for a couple of seconds. This happened 2 or 3 times but I decided to stop as I was getting loads of smoke coming out of the exhaust and it was starting to smell. Also I didn't want to do any damage to the engine. All sorts of errors started to flash on the dashboard. Fuel Injection, HDC inactive, Air suspension inactive etc etc.

I cleared the faults with my IDD tool and tried to start the engine normally. Again, no luck.

Prior to the above, and because the auto electrician suggested that the main tank pump was the cause of the problem, I decided to check inside the actual tank. I opened the inspection hatch over the fuel tank on the passenger side. There wasn't a great deal of fuel in that side but I think enough for the car to run, however I poured 12 litres of fuel in there to make sure there was fuel available. (I don't want to buy a new tank pump just yet as they are quite expensive and it may not cure the problem)

Can anyone confirm if the tank pump actually pressurises the fuel or merely transfers fuel from one side of the tank to the other.

I am getting mixed messages as to what is the problem. I had hope that an auto electrician could give me a definitive fault. Should my next task be to buy a tank pump or get a mobile mechanic to come out and test the injectors? No longer FF owner but still interested. Present car Jaguar XE
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Previous car Td6 SE
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Previous LR- Disco 300TDi Auto

Given that you have adequate fuel coming out of the fuel filter I would have the fuel pressure checked in the common rail whilst cranking the engine if it was me.
If the pressure is ok you will at least know the high pressure fuel pump is ok and running.

Hi. Just realised I forgot to post my results.

I had an auto electrician look at it and he diagnosed fuel pump fault. I replaced the secondary fuel pump and checked the pump in the tank, all to no avail.

So I took the car to a small independent garage on the recommendation of a local Landrover buff and left it with him for a few days.

He replaced the high pressure pump and serviced the injectors. The car starts every time and runs very sweetly now.

Thanks for all the comments and suggestions. No longer FF owner but still interested. Present car Jaguar XE
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Previous car Td6 SE
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Previous LR- Disco 300TDi Auto

I never saw a high pressure pump gone in a TD6 yet 2008 Range Rover TDV8 435,000kms
2015 Range Rover L405 SDV8 Autobiography


2008 Ford Focus1.6 tdci Titanium DPF deleted