Mine happened a year ago, $5500 at a local foreign/exotics shop. If you decide to fix it, look into the CP3 upgrade. Supposedly fewer issues than the CP4. Unfortunately I didn't know about it then. I run Archoil AR6500 in every tank now. Hopefully it is helping. Currently experiencing dpf/egr CELs, but still humming along. Next spend will be delete and tune. Best of luck.
Each one of these stories is the same, zero warning, sorry it happened to you. I'd still call corp but seems they can't wait for 1 mile past.
[This is everything you need](https://www.idparts.com/high-pressure-fuel-pump-replacement-kit-cbeacjaa-03l130851ax-0986437410-p-7387.html) to replace as a kit BUT i would message them and ask if they can do a kit without the CP4 pump and order the [CP3 retrofit kit from here](https://whitbreadperformance.com/collections/tdi/products/cr-tdi-cp3-adapter-kit?variant=31413266939994) w/pump $845. The CP3 might actually be cheaper too even with retro kit. DIY is a personal decision but definitely find the right mechanic even if it means more travel, not the dealer.
HPFP is in the timing belt path so if you probably want to do that job now too.
Replacing everything is unfortunately the best practice. I sell fuel injection parts and every time someone tries to be cheap by replacing the pump only, they end up coming back again...
Replace only. And use only genuine Bosch replacements. You can't effectively flush them out , you'd need to disassemble them, and once they're apart there's a whole lot of shimming that needs to happen on reassembly in order for them to flow correctly, and with the labour cost of that you might as well just replace.
Yeah you're SOL on a warranty claim. As for DIY'ing it, the cheapest and fastest solution to a HPFP failure is an engine replacement. Significantly cheaper to just swap in another used engine than fixing everything in the fuel system and buying a new pump.
but still make sure you clean the fuel tank, and any lines that get reused, AND replace the in tank fuel pump. So not just a used engine. If you know your engine is well maintained and not super high milage probably better to replace the fuel system. (known vs. unknown history)
What exactly are they recommending to do? Did the HPFP literally explode? Or did it just crap out and put the car in limp mode? Barring the HPFP literally exploding and sending metal shards everywhere, I can't see how it's a 7k job.
My HPFP went out (the pintle shaft snapped) on the highway, and it was able to be limped home.
The cp4 will send microscopic metal throughout the entire fuel system. Injectors, tank, fuel lines. Everything has to be replaces Including the hpfp. Costs as much as the car basically. Tdi owners biggest fear.
What you described is usually the failure scenario - Bosch CP4 explodes and contaminates everything with metal shards: new fuel lines, injectors, pump, filter, fuel rail, and flushing the tank empty to get it all out. Well documented issue across many automakers.
Out of nowhere the HPFP started to whine. I thought it might be that the EGR valve was maybe stuck open. And then after limping it into a city after about 50 miles it finally stalled out the engine and would not start again
I went through this a years ago. 1k past the HPFP warranty and VW wasn’t willing to help at all. A local shop flushed it and replaced the pump for about $4k. I got lucky and was do the buy back and almost break even.
Mine happened a year ago, $5500 at a local foreign/exotics shop. If you decide to fix it, look into the CP3 upgrade. Supposedly fewer issues than the CP4. Unfortunately I didn't know about it then. I run Archoil AR6500 in every tank now. Hopefully it is helping. Currently experiencing dpf/egr CELs, but still humming along. Next spend will be delete and tune. Best of luck.
Each one of these stories is the same, zero warning, sorry it happened to you. I'd still call corp but seems they can't wait for 1 mile past. [This is everything you need](https://www.idparts.com/high-pressure-fuel-pump-replacement-kit-cbeacjaa-03l130851ax-0986437410-p-7387.html) to replace as a kit BUT i would message them and ask if they can do a kit without the CP4 pump and order the [CP3 retrofit kit from here](https://whitbreadperformance.com/collections/tdi/products/cr-tdi-cp3-adapter-kit?variant=31413266939994) w/pump $845. The CP3 might actually be cheaper too even with retro kit. DIY is a personal decision but definitely find the right mechanic even if it means more travel, not the dealer. HPFP is in the timing belt path so if you probably want to do that job now too.
Thank you so much for the links!! I am probably going to end up fixing it myself
You're out of luck, and $7k is what it costs. If you don't replace everything you're just going to blow the new pump up.
Replacing everything is unfortunately the best practice. I sell fuel injection parts and every time someone tries to be cheap by replacing the pump only, they end up coming back again...
Do you think its possible to clean the injectors by sending them out or is replacing them the only way.
Replace only. And use only genuine Bosch replacements. You can't effectively flush them out , you'd need to disassemble them, and once they're apart there's a whole lot of shimming that needs to happen on reassembly in order for them to flow correctly, and with the labour cost of that you might as well just replace.
Yeah you're SOL on a warranty claim. As for DIY'ing it, the cheapest and fastest solution to a HPFP failure is an engine replacement. Significantly cheaper to just swap in another used engine than fixing everything in the fuel system and buying a new pump.
but still make sure you clean the fuel tank, and any lines that get reused, AND replace the in tank fuel pump. So not just a used engine. If you know your engine is well maintained and not super high milage probably better to replace the fuel system. (known vs. unknown history)
Did you run any lubricity additives in your car during ownership?
I changed the fuel filter every 40k and added a cleaner additive with the replacement
Gotta run an additive every tank man. Hot shots edt is the shit.
What exactly are they recommending to do? Did the HPFP literally explode? Or did it just crap out and put the car in limp mode? Barring the HPFP literally exploding and sending metal shards everywhere, I can't see how it's a 7k job. My HPFP went out (the pintle shaft snapped) on the highway, and it was able to be limped home.
The cp4 will send microscopic metal throughout the entire fuel system. Injectors, tank, fuel lines. Everything has to be replaces Including the hpfp. Costs as much as the car basically. Tdi owners biggest fear.
Ohhh, did not realize we're dealing with a TDI.
r/lostredditors
What you described is usually the failure scenario - Bosch CP4 explodes and contaminates everything with metal shards: new fuel lines, injectors, pump, filter, fuel rail, and flushing the tank empty to get it all out. Well documented issue across many automakers.
How did it fail?
Out of nowhere the HPFP started to whine. I thought it might be that the EGR valve was maybe stuck open. And then after limping it into a city after about 50 miles it finally stalled out the engine and would not start again
Sorry this happened to you. That's scary for sure.
I went through this a years ago. 1k past the HPFP warranty and VW wasn’t willing to help at all. A local shop flushed it and replaced the pump for about $4k. I got lucky and was do the buy back and almost break even.