How to Replace the Belt Tensioner & Serpentine Belt on a EA888 Gen3 engine

[nd-photo.nl]

Follow this guide if you need to replace (or check) the belt tensioner (and serpentine belt), on your EA888 Gen3 2.0 TFSI/TSI engine.

The INA tensioner broke partially when I released the tension form the belt. Therefore I would recommend another brand, like the SKF unit I bought later.

OE partnr:

06K 903 133 AC	SEAT
06K903133AC	SEAT
06K 903 133 C	SEAT
06K903133C	SEAT
06K 903 133 E	SEAT
06K903133E	SEAT
06K 903 133 H	SEAT
06K903133H	SEAT
06K 903 133 M	SEAT
06K903133M	SEAT
06L 903 133 F	SEAT
06L903133F	SEAT

INA SCHAEFLER Fead Kit partnr:
534 0546 10 / 534054610
Not recommended: the captive nut is prone to breaking

SKF partnr:
VKM 31227

Belt:
6PK1132 / 6PK1130

Generic steps
- Remove upper part wiper fluid reservoir
- Unclip upper aircon line
- Remove tension from belt tensioner
- Put in locking pin
- Remove serpentine belt
- Remove 2 Torx bolts holding belt tensioner
- Remove old belt tensioner
- Install new belt tensioner
- Install 2 Torx bolts for belt tensioner
- Install serpentine belt
- Remove locking pin from belt tensioner
- Clip-in upper aircon line
- Install upper part wiper reservoir
- Top-up wiper fluid reservoir

Step-by-step video guide

Pictures
INA SCHAEFLER FEAD kit + Contitech 6PK1130 belt

INA tensioner vs VW AG

Belt comparison

Broken captive nut

SKF vs INA SCHAEFLER (broken)

Serpentine / Poly-V Belt Routing

 

[RUM4MO]

I'm just thinking out loud here, but how do you "wind back" the SKF version of that tensioner - as I can't see any thing on its body that is there specifically for applying a spanner etc to?

Edit:- or do you just use the pulley retaining bolt to rotate that part of the tensioner - possibly what some other tensioners that get used use to rotate the tensioner.

 

[nd-photo.nl]

Correct, you use the bolt of the pulley, just like the OE tensioner. The INA has a separate captive nut on the tensioner housing. I used the torx bolt of the pulley to release the tension on the INA tensioner

 

[RUM4MO]

It looks like the INA version would have been more robust "in this area" if they had left out the provision for using a Torx bit to rotate the tensioner - nice and convenient idea, but not fully tested to see if it did work!

 

[nd-photo.nl]

It looks like the INA version would have been more robust "in this area" if they had left out the provision for using a Torx bit to rotate the tensioner - nice and convenient idea, but not fully tested to see if it did work!

Exactly, I had those thoughts as well. It broke when I tried the torx part of the captive nut and then it just snapped on me