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Members Rides / Re: Sunset Red 1.4 TSI(TFSI) GT Sport - daily drive & track car

« Last post by rex on Today at 07:51:00 am »

Before sharing the video, one thing I forgot to mention... I said a few posts above I changed the engine oil, moving from Motul 300V 5w40 to Mobil 1 0w40. I noticed that, on track, the Motul oil would peak at around 129 degrees while the Mobil one peaks at 121 degrees. Curious to see how it behaves on the long run...

And here is the video:

A few words about it:
- it was really cold and wet. The suspension setup was for dry (I knowingly did this) and the tires are Michelin Pilot Supersports. So I anticipated the car would not be quickest but my bet was I would be able to play with the car. And so I did!
- the car was quite predictable and easy to place while on the brakes. I tried different brake pressures, racing lines and driving styles just to see which one felt better.
- the last slide I think could have been saved but there were some cones at the beginning of the curbs because there was a big whole there. As I was close to that, I didn't want to damage my brand new wheels so I decided to bail out and go on the grass.

Any advice/comment is welcomed.

Members Rides / Re: Sunset Red 1.4 TSI(TFSI) GT Sport - daily drive & track car

« Last post by mjmallia on March 31, 2026, 07:56:35 am »

Looking good

Members Rides / Re: Sunset Red 1.4 TSI(TFSI) GT Sport - daily drive & track car

« Last post by rex on March 30, 2026, 07:26:07 pm »

Had the chance to take the car on the track and, even if the weather was miserable (maximum of 8 degrees and continuous rain), the car behaved wonderfully and I had lots of fun.
First, I have to say, after changing the spark plugs and coils my random missfires at high RPM in 2nd and 3rd gear went away completely.

After the track day, I also added some of this to take care of the carbon deposits - so no conclusions on the effectiveness of this yet.

Here are some photos from the trackday:

The video will follow shortly.

Mk5 General Area / Re: Lumbar support retrofit and heated seats retrofit on MK5 Golf Help Please

« Last post by foru2justnv on March 30, 2026, 06:14:00 pm »

Hi all
My seats are 2007 onwards as i only have one regulator. I have today swapped the looms over between passenger and driver seat (UK). The only plug now not connected is the blue connector 2 wire which i presume is seat occupancy sensor.
My real Question is I can see the brown wires on both the plugs but ive got different coloured wires. I just want to power up lumbar support for now directly to a fuse shunt. So i need to know which is the power wire on both seats if the brown is the ground.

Mk5 General Area / Mk5 Golf Gti has no terminal 15 power to fusebox

« Last post by Tmmv1 on March 24, 2026, 09:50:31 pm »

Hi. Noob looking for some help please. 2005 Golf gti 2l.
Car was running fine then all of a sudden stopped. No eml on dash Code error Po658. After checking for a while no power to Relays J271 and J757 :) Terminal 15 power i assume. Changed ignition switch and still the same issue, changed j519 relay carrier and still the same issue, checked the relays in j519 all fine. Had the Ecu tested and thats fine. Checked relays J271 and J757 fine, sb fuses are fine with no breaks but no power getting to some of them as well.
I have checked pin 86 on A1(J271) relay and 0v there, did the same with relay A4 (J757) also 0v. I do have constant live to pin 30 on the relays. If i jump pin 30 to 87 the car starts but runs rough.
Has anyone else had this or a similar issue as its got my head done in.

Members Rides / Re: Sunset Red 1.4 TSI(TFSI) GT Sport - daily drive & track car

« Last post by rex on March 24, 2026, 08:06:30 pm »

Got to work on the Golf a bit...

Changed the spark plugs and the induction coils. Went with the OE version.

It's quite a bit thing for me because it is the first time I've changed the spark plugs on a car. Quite happy with how things went.
BTW, saw some videos about changing the induction coils and I can say the technique with using a few zip ties to pull the coils out works great.

I also looked inside the cylinders and I think there is a bit of carbon buildup. I'll try to fix this in the future...

And, then I washed the car and took a few pictures of the new wheels.
I am using a 40 mm spacer (20mm per side) on the front axle (with the Kerscher fenders) and a 30 mm spacer on the rear axle (15mm per side).