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MK7 "Random / "Stupid" Questions Thread"

dtfd

Autocross Champion
Location
Massachusetts
Car(s)
MK7.5 GTI
Quick question - is there a difference between master cylinders in a PP/non-PP car? APR support is saying there is...but I don't ever recall hearing that before.
Same part number across the MQB's. Even the RS3 uses the same brake master cylinder. - 5Q1614019ADREP
 

manu97

Drag Racing Champion
Location
Chicago
Car(s)
MK7 GTI
Same part number across the MQB's. Even the RS3 uses the same brake master cylinder. - 5Q1614019ADREP
That's what I believed. Maybe APR was lookin in the wrong place, because they had two MQB BBK's and discontinued one. Not sure which I'm getting, will try to see if there's a way to measure piston sizes for it.
 

bobloblawGTI

Drag Racing Champion
Location
DC
Car(s)
'19 SE 6MT
Anyone have any experience with a static U105400 code in the Engine module? Showed up after I briefly disconnected the MIB brains in the glovebox. Re-seated all the connectors, got everything back in, but it just won't clear (at least with OBD11, don't have access to VCDS unfortunately.)

IMG_3329.PNG
 

mrmattolsen

Autocross Champion
Location
Jacksonville, FL
Car(s)
2015 GTI DSG
Normal for a 20 min drive? I think I felt one of these when I was passing someone at near highway speeds in 4th gear. Plugs are OEM, 11k mi old on stage 1, gapped to APR specs. The higher count on #2 makes me think… maybe it’s time to swap them out? No CEL or codes.

306B39E0-9859-4EA7-9863-EA700CE57492.jpeg
 
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Kdubya

Go Kart Champion
Location
Florida
Car(s)
2017 GTI
Normal for a 20 min drive? I think I felt one of these when I was passing someone at near highway speeds in 4th gear. Plugs are OEM, 11k mi old on stage 1, gapped to APR specs. The higher count on #2 makes me think… maybe it’s time to swap them out? No CEL or codes.

View attachment 258060


Yeah dude, I’d def swap them out. I’ve changed my plugs 2x already since being tuned with APR
 

mrmattolsen

Autocross Champion
Location
Jacksonville, FL
Car(s)
2015 GTI DSG
Yeah dude, I’d def swap them out. I’ve changed my plugs 2x already since being tuned with APR
Ruths still the consensus recommendation?
 

mrmattolsen

Autocross Champion
Location
Jacksonville, FL
Car(s)
2015 GTI DSG
Swap coil three over to cyl 2 and see if it persists.
Good call. Cylinders are 1-2-3-4 passenger to driver side, right?
 
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