Electrical & Instrumentation

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Most liked posts	Author	Posted	Liked	Forum
Flashing Coolant LED	PaulFDennis	16 Jul 2025, 09:51	2 times this week	Electrical & Instrumentation
T25 dashboard dimmer switch	syncroandy	12 Jul 2025, 07:39	2 times this week	Electrical & Instrumentation

Topics

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Last post

Which alternator?

Last post by RogerT « 29 Jan 2017, 21:18
Replies: 15
by RogerT » 29 Jan 2017, 01:17
1

2
Hi All
How do I tell which alternator I have on my van? Ropey bearings, and it'll either be a new alternator or maybe replace the bearings...

So how...
15 Replies

3052 Views

Last post by RogerT
29 Jan 2017, 21:18
wiring for rear wash wipe

Last post by what2do « 29 Jan 2017, 20:17
Replies: 8
by philmcC » 23 Jan 2017, 15:57

I have a autohomes Komet 1.9 DG syncro. It wasn't fitted with the rear wash wipe originally. Because I had to change the tailgate the new one came...

8 Replies

1753 Views

Last post by what2do
29 Jan 2017, 20:17
Need more Volts at the front of your bus?

Last post by pirate-pete « 27 Jan 2017, 22:38
Replies: 34
by davegsm82 » 12 Jan 2017, 21:35
1

2

3
The past couple of days I've been doing some work on the bus and took some interest in the fusebox.

It's well known that there's a big volt drop...
34 Replies

13170 Views

Last post by pirate-pete
27 Jan 2017, 22:38
Best description of how a relay works.

Last post by dave friday « 26 Jan 2017, 21:03
Replies: 9
by CovKid » 22 Jan 2017, 00:00

You start watching this not quite sure where he's headed but actually its a spot on (and easy) explanation of how a relay. works:

onclick=...

9 Replies

1945 Views

Last post by dave friday
26 Jan 2017, 21:03
Wire supplies

Last post by what2do « 26 Jan 2017, 20:52
Replies: 3
by what2do » 25 Jan 2017, 14:46

I'm a pedant and have a few upgrades to wire in my van, if possible I'd like to use the same coloured wire as oem. Does anyone know where sells such...

3 Replies

1081 Views

Last post by what2do
26 Jan 2017, 20:52
Key turns slightly Van cuts out....

Last post by crazyhorse « 26 Jan 2017, 13:16
Replies: 7
by crazyhorse » 23 Jan 2017, 19:43

Hi all,

Bit of an odd one.

Driving home last night just ouside Llandrindod Wells, I came to a roundabout and the engine died. No indicators worked...

7 Replies

1628 Views

Last post by crazyhorse
26 Jan 2017, 13:16
Wiring for heated seats from Saab 9-3

Last post by boatbuilder « 25 Jan 2017, 20:24
Replies: 2
by dondublin » 22 Jan 2017, 14:38

So after reading the various threads and forums etc I bought a pair of Saab 9-3 heated Leather seats from a car dismantlers here in Dublin. They in...

2 Replies

946 Views

Last post by boatbuilder
25 Jan 2017, 20:24
Stereo wiring.

Last post by bigbadbob76 « 25 Jan 2017, 16:11

by bigbadbob76 » 25 Jan 2017, 16:11

So I decided to wire my stereo to the leisure battery but wanted it powered when the isolator was off and I'm driving or with the ignition off when...

0 Replies

1172 Views

Last post by bigbadbob76
25 Jan 2017, 16:11
Auxilary water pump - not running

Last post by Bison535 « 24 Jan 2017, 19:50
Replies: 4
by Bison535 » 23 Jan 2017, 22:26

1990 T25 JX 1.6 TD

I have read somewhere the Auxiliary water pump (AWP) should run ( briefly ) when the Ignition is switched ON to prevent the AWP...

4 Replies

1896 Views

Last post by Bison535
24 Jan 2017, 19:50
LT heated door mirrors - wiring for westy california

Last post by what2do « 24 Jan 2017, 09:51
Replies: 6
by Westy End » 09 Sep 2016, 19:26

Hello all

I have seen a post in the distant past (thought i had book marked it but they have disappeared) which said how to wire LT door mirrors to...

6 Replies

2488 Views

Last post by what2do
24 Jan 2017, 09:51
Another glow plug question, sorry.

Last post by kit « 23 Jan 2017, 20:45
Replies: 7
by kit » 14 Jan 2017, 15:48

Sorry I can't find the answer anywhere, how long do the glow plugs stay on after the light goes out, mine are still showing on my volt meter for a...

7 Replies

1775 Views

Last post by kit
23 Jan 2017, 20:45
LED lighting replacing tubes

Last post by Jeff J « 23 Jan 2017, 14:00
Replies: 1
by Johnmck » 23 Jan 2017, 12:31

Hi Apologises if this covered elsewhere. I have done a search and all the threads i could find were a bit complicated for me.
I want to fit LEDS to...

1 Replies

760 Views

Last post by Jeff J
23 Jan 2017, 14:00
Cheap charger.

Last post by bigbadbob76 « 22 Jan 2017, 12:34
Replies: 5
by bigbadbob76 » 19 Jan 2017, 21:09

Anyone got one of these?

I just got one off the bay to use as a built in charger, it does the bulk charge and absorbtion charge just fine but...

5 Replies

1525 Views

Last post by bigbadbob76
22 Jan 2017, 12:34
How to............. Extra spot/driving light wiring.

Last post by Timwhy « 22 Jan 2017, 11:30
Replies: 9
by KarlT » 14 Jan 2017, 13:41

Hi guys.
I've fitted a light bar with 4 driving/spot lights to the front on my Syncro.
Lights are wired and have been fed to behind fuse box.
The...

9 Replies

4163 Views

Last post by Timwhy
22 Jan 2017, 11:30
What Rotor Arm

Last post by CovKid « 21 Jan 2017, 20:25
Replies: 19
by Ric1 » 10 Jan 2017, 22:27
1

2
Planning to order some service parts and there is 2 different arms, a limited and a non limited ?

Thanks in advance :ok
19 Replies

5719 Views

Last post by CovKid
21 Jan 2017, 20:25
Melted switch or blown relay? Testing????

Last post by KarlT « 21 Jan 2017, 19:01
Replies: 4
by KarlT » 18 Jan 2017, 23:09

Hi.
Long story but I had to drive holding on the high beam flash feature on my stork switch.
After 20 minutes this stopped working.
I've blown or...

4 Replies

2070 Views

Last post by KarlT
21 Jan 2017, 19:01
Plugs.....What do you do?

Last post by California Dreamin « 21 Jan 2017, 18:08
Replies: 8
by kentishvanman » 19 Jan 2017, 17:40

Hi,
Purchased some new plugs, Bosch, and prepared to set the gap to 25000 (for lpg) but the feeler gauge slid thro with some resistance as per usual...

8 Replies

2604 Views

Last post by California Dreamin
21 Jan 2017, 18:08
Fizzing and Smoke

Last post by Moonrakers « 19 Jan 2017, 23:54
Replies: 4
by lenry » 08 Jan 2017, 23:31

OK, scary evening..

Having tested an in dash USB charge port, in the house connected to a zig unit's 12v output, and then in the van connected to...

4 Replies

1420 Views

Last post by Moonrakers
19 Jan 2017, 23:54
strange reading on battery

Last post by Choppski « 18 Jan 2017, 21:43
Replies: 9
by Choppski » 16 Nov 2016, 23:11

Evening guys,

i've recently serviced my van as it is now in storage for the darker months. went to start it the other day and the battery was flat....

9 Replies

3566 Views

Last post by Choppski
18 Jan 2017, 21:43
Electrical connectors

Last post by robinsbw « 17 Jan 2017, 13:51

by robinsbw » 17 Jan 2017, 13:51

Hi there!
I've a 1986 VW T25 1.9 DG engine, the black round temp. sensor male connector is missing but the wires are there, yellow/red and brown. the...

0 Replies

961 Views

Last post by robinsbw
17 Jan 2017, 13:51
USB

Last post by King Kenny « 14 Jan 2017, 18:05
Replies: 2
by King Kenny » 13 Jan 2017, 19:15

Just fitted a USB port in the dash of my van. I wanted to power a dash cam and my TomTom whilst keeping the cigarette lighter free to charge a phone....

2 Replies

1018 Views

Last post by King Kenny
14 Jan 2017, 18:05
Speedo Over-reading

Last post by MidLifeCrisis « 13 Jan 2017, 23:02
Replies: 2
by MidLifeCrisis » 13 Jan 2017, 11:42

Drove home last night and apparently I was doing 90mph!

Has anyone experienced a speedo over-reading (i.e. Not the usual under-reading/bouncing)...

2 Replies

984 Views

Last post by MidLifeCrisis
13 Jan 2017, 23:02
292 relay

Last post by axeman « 13 Jan 2017, 16:46

by axeman » 13 Jan 2017, 16:46

hi all how are people wiring in this relay when the number 7 relay plate is already occupied with the no53 relay for the fog lights.

thanka neil

0 Replies

1005 Views

Last post by axeman
13 Jan 2017, 16:46
Brrrr.... truma's packed up and it's getting colder

Last post by Jim D « 13 Jan 2017, 12:28
Replies: 2
by Jim D » 10 Jan 2017, 13:27

Hi all you wise and wonderful people....

My truma heater no longer works on be heat function. There appears to be something wrong
with the black...

2 Replies

1334 Views

Last post by Jim D
13 Jan 2017, 12:28
Idling issue

Last post by marlinowner « 13 Jan 2017, 18:10
Replies: 12
by Wilso » 02 Jan 2017, 01:21

Hi all,

I recently bought a VW T25 and it is having problems idling. It will start, rev and then cut out. I can keep it stable by revving but it...

12 Replies

3979 Views

Last post by marlinowner
13 Jan 2017, 18:10
Aftermarket indicator and wiper stalk quality

Last post by ZsZ « 12 Jan 2017, 12:17
Replies: 5
by ZsZ » 02 Jan 2017, 16:14

Hi all!

I made a mistake when I stepped on my stalks laying on the ground. So I need new ones.
Locally we have two brands available Topran and Vemo....

5 Replies

1573 Views

Last post by ZsZ
12 Jan 2017, 12:17
Finding a spare Ignition feed?

Last post by davegsm82 « 12 Jan 2017, 08:47
Replies: 14
by davegsm82 » 10 Jan 2017, 21:28

Are there any recommended places to pick up a reasonably high current ignition feed at the front of the bus? I have installed electric windows but...

14 Replies

5636 Views

Last post by davegsm82
12 Jan 2017, 08:47
Soldering iron recommendation

Last post by Ian and Lins « 10 Jan 2017, 14:59
Replies: 7
by Ian and Lins » 09 Jan 2017, 18:29

I need to solder some fairly hefty alternator cables on my 'bike and wondered what wattage electric soldering iron would you recommend?

7 Replies

1545 Views

Last post by Ian and Lins
10 Jan 2017, 14:59
LED replacements for fluorescent

Last post by kevtherev « 10 Jan 2017, 09:17
Replies: 15
by CovKid » 09 Nov 2016, 17:56
1

2
More from Big Clive for those not familiar with them or their potential drawbacks:

onclick= window.open(this.href);return false;
15 Replies

4983 Views

Last post by kevtherev
10 Jan 2017, 09:17
Zig X2

Last post by DLT « 08 Jan 2017, 20:49

by DLT » 08 Jan 2017, 20:49

Anyone got any experience with a zig X2 unit, not sure if leaving it on will boil the battery or if it will shut off automatically, if anyone has the...

0 Replies

1005 Views

Last post by DLT
08 Jan 2017, 20:49
Flickering lights

Last post by colinthefox « 08 Jan 2017, 17:28
Replies: 22
by R0B » 15 Dec 2016, 22:15
1

2
My Dash.Heater control and Headlights are flickering.The earth crowns look clean enough.Any ideas.
22 Replies

6777 Views

Last post by colinthefox
08 Jan 2017, 17:28
Dash lights not working

Last post by Westy End « 08 Jan 2017, 16:15
Replies: 5
by Westy End » 04 Jan 2017, 18:38

Hi all,

I have blown the dash illumination on my 1991 Vanagon (ie the bulbs that light up the dials not the LEDs in the centre panel/clock nor the...

5 Replies

6357 Views

Last post by Westy End
08 Jan 2017, 16:15
Starting probs!!!

Last post by kevtherev « 07 Jan 2017, 23:02
Replies: 31
by RogerT » 15 Dec 2016, 12:03
1

2

3
Ok, there has been an intermittent starting problem over the past couple of years, whereby the starter will not operate when turning the key. Can't...
31 Replies

10042 Views

Last post by kevtherev
07 Jan 2017, 23:02
Diesel cold start issues

Last post by colinthefox « 09 Jan 2017, 21:25
Replies: 3
by johninleeds » 07 Jan 2017, 12:27

After replacing my battery and cabling my starter turns like a champ... but engine struggles to catch when cold, it's taking at least ten attempts...

3 Replies

1768 Views

Last post by colinthefox
09 Jan 2017, 21:25
aux electric water pump jx

Last post by uncle monty « 06 Jan 2017, 23:09
Replies: 2
by uncle monty » 06 Jan 2017, 22:19

Just bought a replacement pump from vw heritage unfortunately the power plug doesnt fit

I could snip the wire and use spade connectors but dont know...

2 Replies

1258 Views

Last post by uncle monty
06 Jan 2017, 23:09
Mystery component in fuse box

Last post by asander1 « 06 Jan 2017, 17:50
Replies: 6
by asander1 » 01 Jan 2017, 21:24

IMG_0339.JPG

Hello! New T25 owner here! Going through everything and making todo lists of what to fix and what to upgrade, found this device...

6 Replies

2071 Views

Last post by asander1
06 Jan 2017, 17:50
Electrics meltdown.

Last post by itchyfeet « 05 Jan 2017, 20:44
Replies: 28
by KarlT » 03 Jan 2017, 19:11
1

2
Bear with me..........
Last couple of weeks main headlight switch has been playing up.
Driving home new years eve. switch stuck on dipped setting but...
28 Replies

9853 Views

Last post by itchyfeet
05 Jan 2017, 20:44
ctek charger to chassis not battery?

Last post by wolfbus.uk « 05 Jan 2017, 14:09
Replies: 18
by wolfbus.uk » 01 Dec 2016, 21:14
1

2
Wondered if anyone can explain to me why the CTEK manual for my new Mxs25 charger states when battery wired in vehicle to put the red Croc clip on...
18 Replies

7462 Views

Last post by wolfbus.uk
05 Jan 2017, 14:09
GPS Trackers

Last post by a1winchester « 04 Jan 2017, 20:26
Replies: 5
by DoubleOSeven » 04 Jan 2017, 11:01

Sensitive subject I know, but could you folks list up some recommendations please?

Sent from my iPhone using Tapatalk

5 Replies

1571 Views

Last post by a1winchester
04 Jan 2017, 20:26
Diagram of the Relays / Am I missing some?

Last post by irishkeet « 04 Jan 2017, 17:26
Replies: 7
by irishkeet » 03 Jan 2017, 21:00

Hello

I have done a search and I can find a few bits about various relays but no definitive diagram labelling all the sockets / relays and what they...

7 Replies

2675 Views

Last post by irishkeet
04 Jan 2017, 17:26
kmh to mph clocks question....

Last post by rowlesy « 02 Jan 2017, 20:45
Replies: 2
by rowlesy » 30 Dec 2016, 21:22

...just taken out my kmh clocks to convert to mph and have noticed the kmh clock has a pcb and what looks like a electromagnet in it? mph clock has...

2 Replies

984 Views

Last post by rowlesy
02 Jan 2017, 20:45
Ignition draw

Last post by itchyfeet « 02 Jan 2017, 20:30
Replies: 3
by kevtherev » 02 Jan 2017, 20:04

How many amps does it take to run a DG at 3000 rpm from the alternator? (batt disconnected)

3 Replies

888 Views

Last post by itchyfeet
02 Jan 2017, 20:30
Solar panel

Last post by CovKid « 01 Jan 2017, 17:15
Replies: 2
by porthyt » 01 Jan 2017, 10:56

Hi,

Feel free to tell me that it won't work as I presume that it won't.

Can I connect a solar panel to my batteries through the 240v socket? Just...

2 Replies

1023 Views

Last post by CovKid
01 Jan 2017, 17:15
Missing sensor?

Last post by quattrodave « 07 Jan 2017, 21:06
Replies: 8
by Jona2487 » 31 Dec 2016, 15:31

Firstly merry Xmas,
I've spent 2 days searching the Internet and can't find an answer .my van has struggled to start since the weather has got...

8 Replies

2957 Views

Last post by quattrodave
07 Jan 2017, 21:06
Analogue clock and fuel gauge stopped working

Last post by dogbreath100 « 30 Dec 2016, 21:35
Replies: 7
by badgerwhisper » 22 Dec 2016, 15:14

Been away and jumped in to my camper today for the first time in a couple of weeks and noticed that the analogue clock has stopped working. Turned it...

7 Replies

2139 Views

Last post by dogbreath100
30 Dec 2016, 21:35
Speedo reading about +10 mph

Last post by Smosh « 30 Dec 2016, 16:47
Replies: 19
by Smosh » 31 Oct 2016, 22:03
1

2
I replaced the Speedo able at the weekend and its now reading about 10mph too fast at 20mph. Since it stopped working, I have put new wheels and...
19 Replies

7645 Views

Last post by Smosh
30 Dec 2016, 16:47
Petrol to diesel glow plug lights

Last post by 988mick « 30 Dec 2016, 16:46

by 988mick » 30 Dec 2016, 16:46

Ok I have an 83 Westie and I'm considering selling it cause there's to many quirky issues with it and I'm starting to hate it. It's imho a beautiful...

0 Replies

1156 Views

Last post by 988mick
30 Dec 2016, 16:46
Van Stereo/Radio - What to do?

Last post by craigy345 « 30 Dec 2016, 14:59
Replies: 8
by NPG264 » 29 Dec 2016, 15:08

New owner after some ideas for the best fitting stereo/radio, as I understand depth can be a problem. Also would like one with a retro/original feel...

8 Replies

3051 Views

Last post by craigy345
30 Dec 2016, 14:59
Headlight intermittent still

Last post by Smosh « 30 Dec 2016, 12:44
Replies: 7
by Deltic » 15 Dec 2016, 21:18

Hi everyone, reversing lights issue sorted, but could do with some help please. The nearside headlight is giving grief, side light is fine, full beam...

7 Replies

1687 Views

Last post by Smosh
30 Dec 2016, 12:44

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