2008 2.0 tdi 170 cranks but won't start

**Kyle_471** · 21-04-2019,02:13 PM

I cleaned the EGR and 'throttle body' a few weeks ago. Didn't do the intake manifold so I guess that will need doing too. They were crammed full of soot.

Diesel filter was done at the same time 👍
I'll have a look at the wiring to make sure too. Cheers

**Kyle_471** · 22-04-2019,07:10 PM

Slight update, for the worse...

Checked the wiring, nothing looked to be melted or out of place. Wanted to see if the injector fault came back so I started the engine which needed a jump start.

I now have what sounds like a tractor engine that almost cuts out and there seems to be smoke coming from the turbo area..
I can't believe how bad this has got now.. Only bought the car a few months back and regretting it massively. Looks like I'll be on the train to work again this week.

Besides pulling the injectors and sending them for testing somewhere, replacing the loom and having all the timing checked I don't know what else to do.
Trouble is, if the injectors are tested they'll probably say they've had it and my only option then is recon ones. New are 500 each and the car was only 2,800.

**Kyle_471** · 24-04-2019,09:40 AM

So I now have P1266 and P1270 for injector 3 and 4.

I've also done some research and it turns out the seimens pd injectors can't be tested or reconditioned?! 🤬

**DMitch16** · 24-04-2019,12:47 PM

Originally Posted by Kyle_471

So I now have P1266 and P1270 for injector 3 and 4.

I've also done some research and it turns out the seimens pd injectors can't be tested or reconditioned?! 🤬

Course they can - I've seen them tested, dismantled, internal parts replaced, reassembled and retested in a German workshop many years ago a year or two after they found out they were flawed and the original design failing. They are fairly intricate inside and the process was fascinating to see first hand. Not tried it myself with a Siemens unit injector but I have had a common rail Bosch one apart and back together again.

Just to add the original issue was an internal short to the injector casing which means the internals have to be replaced with the improved design. The outer casing remains unchanged as far as I know.

**Kyle_471** · 24-04-2019,01:52 PM

Afternoon Mitch,

Can you recommend anywhere that reconditions them? The few local places all say they're unable.

"We cannot test or repair. Nobody can they are main dealer only."

That's the response to one of my emails.

Cheers

**DMitch16** · 24-04-2019,10:35 PM

Originally Posted by Kyle_471

Afternoon Mitch,

Can you recommend anywhere that reconditions them? The few local places all say they're unable.

"We cannot test or repair. Nobody can they are main dealer only."

That's the response to one of my emails.

Cheers

The reason why most workshops can't refurb the Siemens is that Siemens / VAG wouldn't supply the necessary parts to allow the injectors to be remanufactured creating a monopoly where they could charge stupid money even for the refurbished version let alone the new units. Some since the original issue have gained approval from Siemens to be able to remanufacture them but they are few and far between.

Give TT Auto (TT Automotive - Diesel system specialist - Experts in diesel pumps, diesel injectors, petrol injection, repairs and servicing.) a call in Loughborough as they handle pretty much all the major brands including Siemens VDO which are refused by some. Otherwise it might have to be used units from somewhere as long as you get the right part number and not the faulty ones (there's some in circulation still of that I'm sure). Mine replaced via the VW campaign for free along with the loom that suffers due to the shorting also, have passed 120k mileage and still looked good when I pulled them for a seal change and clean around 20k or so ago.

Also give Diesel Bob (UK), http://www.dieselbob.co.uk, who merged with Ribble Valley Diesels a call as they might be able to give you an idea as to whether the engine can use Bosch unit injectors instead of the Siemens and how much work / cost is involved. They state they do not refurb Siemens VDO as there is a risk that the fault would not be removed and the damage as a result severe. Only Siemens approved businesses should be considered.

Perhaps Crasher will read this and add his professional expertise on this subject as he is in the trade.

**Kyle_471** · 24-04-2019,10:40 PM

Just out of curiosity what injectors did you have? Do vw still replace them if they've not been done?

I've been looking into the bosch idea but not sure how viable it is.
Cheers again

**DMitch16** · 24-04-2019,10:49 PM

The 170 injectors are said to be slightly different and have a part number of 03G 130 073 T whereas the 140, commonly a BKP engine, is part number 03G 130 073 S.