All Things Mk5 > How to Guides / Troubleshooting
How to change Fuel Pump Cam Follower on 2.0 TFSi
pudding:
It's primarily increased load from aftermarket fuel pumps that accelerate follower wear, so not everyone needs to unduly concern themselves with this.
Other secondary causes include, crap oil and extended drain intervals, increased rev limiter from remaps, increased pump load from remaps etc etc.
For people wanting to keep their cars indefinitely, there is the AKS TSI roller conversion, which is a permanent solution. VW themselves saw this as a flawed design and upgraded it. The conversion uses genuine parts, it's not a hack job. Otherwise regular changes of the follower is what most folk do. A lot cheaper, but more risk of damaging stuff because the pump and follower were not designed to be removed frequently.
colesey:
--- Quote from: Pudding on July 24, 2017, 11:19:14 am ---It's primarily increased load from aftermarket fuel pumps that accelerate follower wear, so not everyone needs to unduly concern themselves with this.
--- End quote ---
10 days ago when I had my VIS pump internals fitted, the mechanic reported that the spring retaining collar had some hairline cracks. This is on a 24k mile car which had no issues reported when the cam follower was replaced last year. Apparantly this is a common fault according to the local VW dealer. Anyhow, in the last few days whilst I was waiting for the new pump to arrive those hairline cracks have grown visibly in just 200 miles and the rear seal was also damaged. Whilst I feel relieved that the pump has now been replaced with a new one, there won't be any complacency on my part in having this checked regularly. Perhaps there was a manufacturing weakness which has since been resolved but why take the chance.
BlackCloud:
I've just had mine changed for presumably the first time in the cars life, (although it could have been done before I owned it, theres nothing in the service book or reciepts)
Cars done 80k, The garage gave me the old one. (Had it done in addition to a service) Looks completely fine, If I'd checked it before booking it I wouldn't have bothered.
colesey:
My original follower also looked fine when replaced last year, albeit at a lower mileage, however a close inspection of the pump did not appear to have been undertaken by that mechanic.
pudding:
--- Quote from: colesey on July 25, 2017, 12:25:35 pm ---My original follower also looked fine when replaced last year, albeit at a lower mileage, however a close inspection of the pump did not appear to have been undertaken by that mechanic.
--- End quote ---
Got a pic of the part in question? I can't say I've ever checked my pump when it's come out for follower replacements. It's a Loba though, so not sure if they change that bit or not.
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