Sorry, I just noticed your first comment. The NHTSA investigation covered the 09-12 model years. From changes in the part number, it has been suggested that Bosch has updated the CP 4.x four times since the inital release in 2006 or 2007.When you say the % of failures WAS too low, how many years ago was that? I noticed the dieselgate issue first came up when many of these cars were still low in their mileage and it was early in the MKVI model and as such they hadn't had the time time rack up mileage as a particular generation. NOW it seems like there's more failures occurring as they have been "fixed' and sold back to the public. Consider, I lost the first pump about 10K short of the extended warranty ending and the ANOTHER one, with the full fuel system having been replaced in about 45K. The ALH engines could go hundreds of thousands of miles without pump failures, the BEW engines too, but the MKVI CJAA seems to have an appetite for for them and not just on the VW brand cars. That looks like the VAG supplying a part/parts that is LOW quality and perhaps THEIR supplier/suppliers should have to pay up on this problem. VW was VERY quick to settle of the dieselgate scandal and payout. I find it suspicious that this problem isn't being looked into the same way say, Ford with their junk trannies and head gaskets, was held accountable. I can't say anything will happen, but the more "wheels get squeaky" the more likely VAG will have to supply MORE "grease". I'm not suggesting a recall per say either, just that VW admit that there's an issue AND pay for it...some MORE
Don't have a vw dealer nearby to get more information or an accurate estimate on repairs.I did and it hasn't had the modification done. So either no warranty or has to have the modification done to get the warranty, or both have to be done out of pocket.
Did you enter the VIN with the letters in all caps, like this: 3VWLA7AJ9FM218662? Because if you do this: 3vwla7aj9fm218662, the website will say the modification has not been done.
Unless a cp3 is installed. Problem solved.I am looking at a 2009 tdi, with a bad fuel injection pump is what is posted but I bet its the HPFP. I wonder if it is under warranty? I was thinking of buying and repairing, but after looking at what another posted, it could cost over 2700 in parts, even if I could get a lower price on the car, the parts would be more then the car is worth. It's sad that things are getting to the point where a car that could last 400k has to get 2700 dollar in parts every so often because of a poor design..
Yes, I did, and I currently contacted a dealership they said it hasn't been done, and can be done, but with the extended warranty that comes with it wouldn't cover the HPFP, if it has failed.
If a person was to install a CP3, would they be better doing the emissions modification or running a delete on it? I looked up the CP3 and a kit ranges from 800 to 2700, of course the more expensive ones come with fuel lines and were out of stock. If the HPFP did fail and it wasn't an electrical problem, what all would need to be replaced besides the pump, the injectors, and fuel lines? I was originally looking at it as a project vehicle, to fix and sell, or fix and keep and sell my current vehicle which has a payment. But after some of the research, I am thinking of either walking away or maybe fixing to sell. The guy put a stereo in it and tires on it before it failed him. What would be the value of it if a person used it as a parts car and parted it out. The other choice is to watch for one that was wrecked and do a motor swap.
Cp4 failure. It's about 3k in parts. All 3 pumps, fuel lines, and injectors. You can install a cp3 and retain emissions. Just need the pump and adapter kit. I got one for 800 usd. Just have to slowly bend the high pressure fuel line. And the second fuel pump can be deleted. Can also install an emissions compliant tune.
Well if you did the modification after the cp3 install, you'd have warrenty again.you could put a 1 micron cat filter on before the cow and not clean the tank. Your injectors could be sent in for a rebuild. And if you were sure you cleaned the rail well enough. The only thing not covered would be the pump.
Not sure if you went ahead with the emissions mod at the dealer that you would be eligible for the extended warranty anyway. I thought that option had a limited date. Much like the cash payout.
There is a class action lawsuit now against all the truck manufacturers for this pump and blaming the failure on the owners. Dodge stopped using the CP4 in 21 model year, Chevrolet stopped some time ago like 17model year, Ford still uses the CP4 pumps. The fix for trucks is in the neighborhood of $10k.. the Bosch pump is made for European diesel.. it is high sulfur content not like the us with ultra low sulfur diesel, that’s why I run the lubricity additive and that is why the pump is prone to failures of this type.
You'd think a class action should be against Bosch. Because they manufactured the pump. Not the manufactor s fault Bosch built a bad pump.
Update for my fix.
Ummm no, the ULSD requirement of less than 15 ppm sulfur is also in Europe. The differences are a higher cetane rating and higher lubricity.
I wish I had the mechanical knowledge to do the work myself.... I know enough to probably be dangerous. Parts for replacing the fuel rail parts is about $2700 at the parts site we usually bought from. Think they said + $500 core (for injectors, etc). I would imagine replacing HPFP is something a bit above the knowledge/ability that I have...
Any update? Curious to see what their tests show. Usually having it fail so soon after filling up they may want to say contaminated fuel. But most of us who have diesel jettas have never used the wrong fuel. Especially since you likely have the special insert that prevents a regular gas pump from fitting.
Did the Dealer give you anything for the rest of the car or did you just walk away?
maybe try the service manager and see if they can help. They can do a goodwill repair and bill back to manufacturer just have to have a compelling argument. The fact that the HPFP was added to the warranty may be able to work with you. You’ll have to plead your case.
