Hi new member here!
I purchased my MK5 GTi a few months ago - 60k on the clock with full VW service history, and I love it!
After a couple months of driving, I am starting to notice a few niggles. I believe the car may have been sat for a while which would explain the low mileage. I hope you guys can help me (I’m not mechanically savvy) diagnose these issues.
I will try to cover as many points as I can here, I am using my phone so I’ll just list them in no particular order.
-Cold start; the car kind of splutters into life, it can offen take a couple seconds to start but always does with the key held in position. It doesn’t quite sound like a normal starter motor sound either, I would describe it as more mechanical and almost “clattering”
*edit* After a long drive, particularly motorway with no clutch usage, when it comes to needing to, the clutch pedal can feel pretty stiff, almost as if pressure has built up.
-Rough idle; I say rough but really it’s more like tiny shudders, usually when warm and you can physically see it on both the rev gage and when inspecting the engine.
- Inconsistent power; when it’s good it’s good! Boost from low down in the rev range, just how it’s supposed to be! However there are occasions where I put my foot down and it almost feels like the turbo isn’t spooling, when this happens and if I persevere with the loud pedal, around 3500 and sometimes as late as 4000 there’s a sudden surge of power and I can physically feel the turbo kick in.
I have removed the oil filler cap while the engines running to test for vacuum and can feel suction but it’s possible to remove, the car splutters and acts like it wants to stall.
I have also gone through 0.5 litres of oil in 5k miles
MPG sits below 25mpg even on sensible drives, long motorway journeys don’t even break the 30mpg mark. It can also smell pretty rich, particularly on start up and there is visible exhaust smoke until she’s warmed up. I figured this was just normal on a car that produces more power than I’m used to but could be useful information. I always put the premium fuel in btw.
That’s all I can think of for now.
Thanks in advance!