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How to retro-fit skid trays, aerodynamic under trays, & stone guards to a MK7 Golf

golfdave

Autocross Champion
Location
Scotland (U.K.)
Car(s)
Mk7 Golf GT Estate
View attachment 227442

Front tray and front exhaust tunnel cover. The only thing left to install - the MK8 Golf lower rear aero covers. Extraordinary. The engine is barely audible. Very pleased. Thanks again @golfdave.

Glad you got it done! Its how they could & should have come from the factory!....Quieter, more bodywork protection, better aero dynamics, better fuel consumption.

P.S. I see you have the Audi aluminium front subframe...........nice!!!... (y)
 

HuangMoney

Ready to race!
Location
Central NJ
Back to the exquisite repository we have here...this time i've acquired a MK7 TDI. Time to fit some of those torsion beam parts with a little bit of dremeling.
 

Justin871

New member
Location
TX
Car(s)
2015 Golf SW TDI
Just got in 5Q0825229C exhaust tunnel cover from e acca. It won’t mount to my 2015 golf sportwagen TDI, the panel seems to be a few mm too narrow, I cant get all of the push pins in, only three. The fourth requires using 50+ LB of force to “stretch” the cover to get the push pin in, no way that ends up being right. Did I order the wrong panel?
 

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golfdave

Autocross Champion
Location
Scotland (U.K.)
Car(s)
Mk7 Golf GT Estate
Just got in 5Q0825229C exhaust tunnel cover from e acca. It won’t mount to my 2015 golf sportwagen TDI, the panel seems to be a few mm too narrow, I cant get all of the push pins in, only three. The fourth requires using 50+ LB of force to “stretch” the cover to get the push pin in, no way that ends up being right. Did I order the wrong panel?

The pin goes into the middle hole in the picture.

Have you placed the "wings" of the panel behind the existing side panels??

Other fact could be that the existing metal bracket in the exhaust tunnel is fitted the wrong way around??
 

Justin871

New member
Location
TX
Car(s)
2015 Golf SW TDI
The pin goes into the middle hole in the picture.

Have you placed the "wings" of the panel behind the existing side panels??

Other fact could be that the existing metal bracket in the exhaust tunnel is fitted the wrong way around??
I placed the “wings” behind the existing side panels as mentioned in your post. I also thought the exhaust tunnel bracket was possibly on the wrong way but it appears correct. The hurdle seems to be the front subframe brackets, very strange
 

golfdave

Autocross Champion
Location
Scotland (U.K.)
Car(s)
Mk7 Golf GT Estate
I placed the “wings” behind the existing side panels as mentioned in your post. I also thought the exhaust tunnel bracket was possibly on the wrong way but it appears correct. The hurdle seems to be the front subframe brackets, very strange

Maybe one of the brackets isn't 100% correctly aligned??....The big bolt is 70Nm & a further 180deg turn (renew after each use)...the smaller ones are if M8 size 20Nm & a further 90deg......if M10 size they are 50Nm & a further 90deg...again all renew after each use....

I'd just shuffle the tray over a bit...as the holes in the tray have tolerance in them
 

Justin871

New member
Location
TX
Car(s)
2015 Golf SW TDI
Maybe one of the brackets isn't 100% correctly aligned??....The big bolt is 70Nm & a further 180deg turn (renew after each use)...the smaller ones are if M8 size 20Nm & a further 90deg......if M10 size they are 50Nm & a further 90deg...again all renew after each use....

I'd just shuffle the tray over a bit...as the holes in the tray have tolerance in them
I suspect something is fishy because the car had the dieselgate fix and they did stuff with the subframe and things did shift a tad, had to get an alignment after. I’ll of course keep trying. It should fit then I suppose, I just really wanted to make sure I had the right parts on hand, as that is most of the battle.

Ill have to grab a pic of the exhaust tunnel that might be of use 🤣
 

golfdave

Autocross Champion
Location
Scotland (U.K.)
Car(s)
Mk7 Golf GT Estate
I suspect something is fishy because the car had the dieselgate fix and they did stuff with the subframe and things did shift a tad, had to get an alignment after. I’ll of course keep trying. It should fit then I suppose, I just really wanted to make sure I had the right parts on hand, as that is most of the battle.

Ill have to grab a pic of the exhaust tunnel that might be of use 🤣

Yep that's the problem...(bold)
 

Justin871

New member
Location
TX
Car(s)
2015 Golf SW TDI
Yep that's the problem...(bold)
Compared the angles of my subframe brackets vs some other pictures on this thread and it is safe to say they are both angled, causing the front mounting holes for the cover to be a good 1-1.5cm off too far apart. Crazy how much you learn about your car when you go over it with a fine comb 🤣

I will have to get some new TTY bolts and align the brackets so they are straight instead of angled, so silly. Then another alignment. Luckily I know a place that is affordable.

it’ll be worth it. AEEEROOO 🔥

thanks for all the help, when I get around to completion my pics will definitely be uploaded. The rear exhaust cover went on without a hitch, just an extra run to the dealer for some small parts as usual
 

golfdave

Autocross Champion
Location
Scotland (U.K.)
Car(s)
Mk7 Golf GT Estate
Compared the angles of my subframe brackets vs some other pictures on this thread and it is safe to say they are both angled, causing the front mounting holes for the cover to be a good 1-1.5cm off too far apart. Crazy how much you learn about your car when you go over it with a fine comb 🤣

I will have to get some new TTY bolts and align the brackets so they are straight instead of angled, so silly. Then another alignment. Luckily I know a place that is affordable.

it’ll be worth it. AEEEROOO 🔥

thanks for all the help, when I get around to completion my pics will definitely be uploaded. The rear exhaust cover went on without a hitch, just an extra run to the dealer for some small parts as usual


Maybe use the moment to fit a tryolsport deadset kit which includes the bolts??
 

seanblee

New member
Location
Enfield, UK
Car(s)
Golf Mk7.5 GTI PP
Just wanted to say thanks for all the info - fitted the front aero undertray, rear exhaust tunnel cover and rear subframe cover to my 2019 GTI PP, along with the rear subframe harmonic damper and the RS3 front brake air guides. In case it helps anyone else...

  • The Mk8 front exhaust tunnel cover doesn't fit my car - it hits the GPF can. I could probably bend it slightly, but I suspect it would rattle against the GPF if I did...
  • Engine aero undertray part number 5Q0825236N is a perfect fit - it has the two NACA ducts and the sound absorbing mat on the inside.
  • Different thread I know, but the rivnuts for the Mk8 rear lower arm covers are really tough to install - I broke my rivnut tool trying, so I'm going to get some more of the plastic push rivets instead...
Thanks again!
 

golfdave

Autocross Champion
Location
Scotland (U.K.)
Car(s)
Mk7 Golf GT Estate
Just wanted to say thanks for all the info - fitted the front aero undertray, rear exhaust tunnel cover and rear subframe cover to my 2019 GTI PP, along with the rear subframe harmonic damper and the RS3 front brake air guides. In case it helps anyone else...

  • The Mk8 front exhaust tunnel cover doesn't fit my car - it hits the GPF can. I could probably bend it slightly, but I suspect it would rattle against the GPF if I did...
  • Engine aero undertray part number 5Q0825236N is a perfect fit - it has the two NACA ducts and the sound absorbing mat on the inside.
  • Different thread I know, but the rivnuts for the Mk8 rear lower arm covers are really tough to install - I broke my rivnut tool trying, so I'm going to get some more of the plastic push rivets instead...
Thanks again!

GPF cans & exhausts silences/mid boxes do cause problems for the trays in that area..its still a case of "try it"...


Rivnuts are PITAs....I have a big tool for them, but you have to line it up properly otherwise it screws them up!..... I see you'll use the plastic OEM ones top & bottom as I suggest in the thread.


Anyway sounds like you blitzed my guides!!!... (y) :cool:
 
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