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11

Random Chat / All members

« Last post by Andy on December 24, 2025, 06:50:00 pm »

Thank you all for supporting this forum and keeping it going especially @dazza for working in the  back ground keeping it running of which we will need donations again next year to keep it running...
Happy Xmas and new year
Andy

12

How to Guides / Troubleshooting / Re: How To: Mk5 Heated Seats Retrofit

« Last post by Golf5FSI on December 24, 2025, 11:23:14 am »

UPDATE:

I have managed to fix it, after I put some time and study schemas from "jason_rmh" in post nr1 of this thread 

1. I have joined together pin2 and pin4 passenger on heat seat connector on the passenger side. I have used new wire and put in pin2 and crimped with pin4 together using "U" type terminal between seat and female connector.
With this I have achieved direct connection between pin4 on both seats and connection to HVAC module.

2. Removed fuse SC4 (kl15) from fuse box and leave only SC46 (kl15).
With this I have removed +12v from pin4 which disturbs signal from HVAC module, while HVAC module got separately +12v via SC46 (kl15).

No error is system. Heating works now as should on both seats.
Only thing to have full Feng Shui, is to find where is spliced SC4 (kl15) with pin4 wire originally and remove join leaving pin4 connections without voltage.

13

Mk5 General Area / Re: Random Low Oil Pressure warning

« Last post by PTR12 on December 24, 2025, 08:47:10 am »

The cam phaser, chain and tensioner were all replaced 1y ago. I will go and test the oil pressure after Christmas, as I am not using the car until then.

14

Mk5 General Area / Re: Random Low Oil Pressure warning

« Last post by mjmallia on December 23, 2025, 10:02:05 pm »

15

Mk5 General Area / Re: Random Low Oil Pressure warning

« Last post by mjmallia on December 23, 2025, 09:56:42 pm »

I would be inclined to double check the pickup as it would be in the back of my mind.

Otherwise cam phaser wearcan bleed oil pressure and also the oil feed in the chain casing can get blocked.....the one with the micro gauze in it

16

Mk5 General Area / Re: Random Low Oil Pressure warning

« Last post by PTR12 on December 23, 2025, 07:29:26 pm »

There wasn’t a whole lot. The entire mating surface covered in a thin layer.

17

Mk5 General Area / Re: Random Low Oil Pressure warning

« Last post by mjmallia on December 23, 2025, 07:17:26 pm »

It's rare that it does it for no reason in chill mode driving. My only suspicion or question is how much sump sealant did you put on as the excess could have broken off and be blocking the pickup. This happened to me by a garage who did the pickup and then months later the light came on. .......I stripped the sump off as I too said to myself the pickup has been done, and to my surprise the pickup was blocked full of excess silicone sealant.

18

How to Guides / Troubleshooting / Re: How To: Mk5 Heated Seats Retrofit

« Last post by Golf5FSI on December 23, 2025, 12:41:56 pm »

Hello community,

Sorry to revive this old thread.
I have early Golf 1.6 FSi 2004 LHD with standard manual heated seats from fabric.
Recently got leather heated seats where driver seat is electric and both seats have electrical lumbal support from Golf GT 2008 LHD.

Everythings works (electric movement driver seat, lumbal support on both seats, driver seat heating) except passager side heating.
Electric movement for driver seat and lumbal support is fixed with additional 2.5 mm2 wire direct to SC34 with 20A.
Electric lumbal support for passenger seat is fixed by reusing old wire for seat heating since is kl30 (SC37) and can't be used for heating anymore (+2007 seats).

Seat heating - passager seat - issue:
Added additional 2.5 mm2 wire and connect pin10 in both seat connectors.
Problem is that I have +12v power for only first 2mins on Pin10 after IgnON.
When 2mins is pass, there is no power anymore and no heating on passager seat. Heating on driver side working normally.
Thought maybe was controller (relay 1Z0959772) under driver seat, tested with two others (1K0959772 and 5K0959772) and result is same.

Borrowed constant +12v (Kl.30) from lumbal support to Pin10 on passenger seat, now heating is working, but discharges battery overnight.

Did I miss something?
What controls time for relay Pin10?

Maybe elegant solution is to connect Pin10 on the passenger seat direct to fuse box and get +12v from ACC (Kl.15, SC31 spare place) which will avoid battery discharge ?

Thank you in advance !

19

Mk5 General Area / Random Low Oil Pressure warning

« Last post by PTR12 on December 23, 2025, 12:11:04 pm »

I was driving last night pretty chill, and my car decided to make me crap a little by throwing a low oil pressure warning. I shut off the engine immediately and coasted to a stop.

The thing is that i JUST made an oil pump and chain replacement 400km ago. Pickup pipe and oil pan were cleaned thoroughly.

I took a risk and briely restarted the engine and to my surprise, no weird noises, no low oil pressure light, nothing. I checked obdeleven for the oil level and it seemed to go down when i lightly accelerated so to me that looks like the pump is doing its job (damn you VW for not putting a true oil pressure sensor in the damn car) I was close to home and drove it there. Haven't even thought of starting it since.

So the oil pump is working, the chain didn't break, the pickup pipe is clean. What could it have been?

20

Mk5 General Area / Re: Slight misfire

« Last post by mjmallia on December 23, 2025, 10:00:37 am »

Did you carbon clean the valves when the manifold was off?

Did you change all the injector seals also as they are one time use.