First post, just bought a passat TDI as a runaround due to my 540 being constantly vandalised.
I'm going to slap my splits on it, here's a picture from when I test fitted them to break the ice haha
I've done loads of research the last few days, but I'm stuck so decided to post a thread. For the sake of this we'll use computer MPG's, I know it isn't accurate, but it still serves a purpose.
Basically, I picked up my Passat PD130 the other day, got an indicated 64mpg, very impressed!
Drove it to work, 55mpg, very impressed.
Drove home (no traffic as I work nights) 62mpg, very impressed.
Now, I've only owned the car a week, but almost over night I am now struggling to get 40mpg coming to work, and 50mpg coming home,
It seems the slightest touch of acceleration has my MPG dropping.
I did some reading and I found a good explanation of the vacuum system on these engines, I saw something that said pull the vac hose off the actuator, and if you can blow down it, you have a vac leak... I did this quick test and I can indeed blow down that vac pipe.
The car seems very sluggish off boost, and seems to spool much later than it did when I first got it, between 1500rpm and 2000rpm.. I suspect this is the cause of the MPG decrease.
I can hear a sort of vacuum leak noise coming from the airbox/turbo/EGR valve sort of area, but all the pipes I can find seem secure.
Anybody have any ideas?
How long does it take to replace the vacuum hoses?
The car has to do a long road trip with 5 friends tomorrow, so I'd preferably like my MPG back before I go haha!!
Sorry for the long post,
Cheers