I’ve got a 07 v10, the battery system is a little complex on these cars. Battery under the passenger seat provides power to all modules, you can jump this using the engine bay terminals. The battery in the boot is just for starting the engine and only connects to the system when the key is turned. The volt gauge on the dash only shows the voltage of the battery under the passenger seat. If that battery is not supplying more than 10v to the modules they won’t talk to vcds. A lot of electrical gremlins clear up with a fully charged battery.

Frankly, I would like to see this thing come back to its former glory. These are truly awesome

Hi Dean, Before you test the ECU look at the immobiliser module as when these go faulty they stop you connecting to the ECU. Its worth spending time on this car and when you sort out what may be one electrical fault everything else will seem straight forward.

More content on this V10 please Dean. Speak to Darkside, see if they'll help out, or a collaboration with Diagnose Dan. Either way, you may hate it, but worth the work just for the sake of getting the V10 running good again. Looking forward to more on this 👍🏼

The important battery on these is the supply battery under the seat. The one in the boot is only for starting the engine. Touaregs and phaetons are extremely picky about battery’s. Slight low voltage and not using AGM battery’s can cause any electrical problem you can possibly think of. Also charging the rear battery does not charge the battery under the seat, as it’s only connected when in use or being charged by the alternator. You can charge the supply battery from the terminals under the hood, but you’re technically not supposed to, as it can also upset he cars electronics

Check the fuses mate. Could be that the fuse is gone for the obd2 socket. You should have 12v on pin 16 at all times. If they are OK and you have an oscillascope, then if you check pins 6 and 14 you'll be able to see if you have a good CAN waveform. It should look like a mirror image, so as one signal goes high the other goes low. If you don't have an oscillascope then you could try unplugging modules one by one and retrying vcds, as if you have a bad module it can mess up the whole CAN system.

I thought I was on a gardening channel at first with the amount of greenery going on! It’s an awesome looking car and the fault finding and diagnostics will make for fascinating content. It’s definitely worth saving. Apart from the tatty switchgear the interior looks okay. If you can sort that out it will be a nice motor.

Battery in boot is only a starting battery. There’s another one under the passenger seat that runs the central electrics.

Love to see you get it up and running, like to see the processes that you follow. Its always helpful.

My dream car. Touareg V10 tdi. What a beast. Save this 1. I don't think they will ever make a beast like that ever again for domestic market. Diesel power all the way. Love your channel and keep up the top vids mate.

I think in order to recoup some money, you’ll have to do a diagnostic series. Looking forward to it. Darkside developments have done amazing work on these cars. They seem to make great off-roaders

There's not too much European V10 Touareg content out there, so it would be cool to see you save this. Then go offroading with Darkside Developments people? 😄

This is going to be well interesting 🧐 look forward to seeing this beaut coming along, would love to see a major transformation 👌

I can see this one being a nightmare 😂! Don't see many V10 diesels, save the old girl!! Good content mate

I'm actually looking forward to see all the issues resolved. This will make great content

Deano, check the footwells for water. If there's any modules under the carpet that have got wet, that'll play havoc with the electrics. Also check the side panels in the boot for water. Then look at the immobiliser module before going near the ECU.

Fair amount of £ invested, and i think that V10 will be interesting to see what it will be like. Something different for the channel Dean, so i personally think it would be good to see what you can do to get it up and running. A good proper clean of the interior and maybe a refresh of the switches (so at least you can see what they are!) might be good too.

Excellent video as usual. To get it diagnosed and MOT'd would be fantastic content on a rarely shown beast of a car. On purely economic grounds, it could be a money pit that you might not get any return on. Love this channel.....

Get it going and use it like you did with the Skoda! It seems to be a thing these days to take the fuse out that controls the OBD port on cars that have keyless start. May be worth a check.

You know, seeing you so jaded over a car made me laugh way too much - especially because of how much I adore the Touareg V10. The look on your face filled me with so much joy, lmao!

Excellent Channel, really enjoy your videos. Keep em coming 👍👍

Save this one Dean, will be a great project, might need to know the lawn first in the wheel wells !!, Great vid Dean, keep em coming.

I remember when this beast was launched. VW had a video icon showing the crank pulley with soundtrack of it ticking over, it said what does a V10 diesel sound like? It was hypnotic. I was totally sold on this car, ( but couldn’t afford it, or anything else much at the time!). Mr Sensible says bin it, but Mr I Love V10’s says sort it. Obviously had a Construction, agricultural or transport sort of dude owning it at some time, with rough hands, that scraped off all the interior trim! I just find the sound of that engine hypnotic, perhaps you should sell it as a living sculpture with a hypnotic soundtrack - different 👍😎😂

I love the little dance it thought you were doing with the door! I assume you weren't madly flapping about and the switch just has a loose connection

Hi Dean, that’s got the new revised 2007 onwards front end on it. Possibly a lot of wiring issues in getting that new front end to fit / work for the guy who fitted it. My input - keep with it that will be an awesome car when done……good luck mate..

I have one of these monsters, it's abit of a problem child but I can live with it. The v10 has 2 batteries, one in the boot and another under the passenger seat, I think the reason why vdcs can't read the car is because the battery under the seat is dead, this battery runs all aux and the battery in the boot starts the engine. Try charging both batteries, Please don't scrap it, do the right that by this rare beast and put it back as it should be. It will put a massive smile on your face when you pit your right down.

love to see more of this snd see it up and running, will make interesting content for sure

I reckon a collaboration with darkside developments is in order. They know these inside and out. You could make it a nice offroader for yourself.

On another site I was viewing today, they referred to the 'comfort module' which comprised the immobiliser. Apparently this controls the communications, fixing and reprogramming that sorted the Audi in question.

Keep at it, would like to see you solve the problem. Get it running as it should.

I say save this beast! Start by removing a bunch of interior parts and checking for water damage, check fuses and try to find out if someone else has had these kinds of problems before

Seems like a good project. These were quite unique vehicles and there will be nothing like them in the future. Keep up the great vids 👍

Hi Dean You should persevere and i believe the suggestion to check out the immobiliser is a good starting point before tackling the ECU. good luck.

Hi Dean love to see more vids on the TDI vw Touareg love your vids big fan 😀

Cor, sticky one mate! Already nuts deep, I'd keep going for a minute. You said it.. V10 Goodness! It'll only become a money pit if you let it. You'll know when if you really need to get out of it! Good content as always mate 👍🏻

I think you've got some great diagnostic content in this car, so I would keep it. Sounds like you may have another battery under the passenger seat which needs checking as well. Looking forward to the video.

Hi Dean please go ahead and fix it keep up the good work love the channel highlight of my week.

I have a 2004 V10. I bought it as a none runner. The engine ran but nothing else. I didn't communicate with vcds, which after careful testing etc was a combination of furred up contacts (from standing) in the main power relay next to the battery under the passenger seat and a faulty 'kessy' module. This is the keyless entry module which has two of the three can bus lines running through it. Faulty unit, two can bus lines down. From memory I couldn't talk to the transmission, the air suspension or the bcm. I repaired it with two transistors from Cricklewood electronics for about £17.00. If the kessy unit is playing up, it'll keep making the battery under the passenger seat go flat. Good luck👍

This video will blow up! Great for content

Love the channel bro!

Hi Mate, I have a V10 Phaeton and have a few pointers. The car has two engine ECUs and VCDS will not auto connect to them! you have to manually tell it what type of car it is. The door indicator will be the actual switch, try spraying some some brake cleaner in the latch mechanism and blow it out with air. They get dirty. It's worth looking the turbo seals and cams, both common issues and something you want to know about before sinking money into it. Cost me £2k in parts/tools to do the cams and mechanical pumps. The tools are hard to get as VW don't sell some of them now, so let me know if you need them. That whistling noise is likely a leak, mine doesn't do that.

I love my Touareg. Mine is a 2006 V6 altitude and I absolutely adore mine. If you keep on top of these motors they are brilliant. The V10 is a great car with mechanical drive to the gearbox. Biggest problem with the V10 is the idiots that by them short term and rag them 0-60 and 0-100 all the time, keep them a few months then sell them on. Lots of gremlins with them electrical wise so you really have to keep on top of them. Can't wait to see if you get this car turned around they are very rare and sort after now.

Brilliant! Love stuff like this.

I think the V10 has 2 batteries? Remember seeing this when replacing the one under the passenger seat on my wife's R5. Undo front bolts, seat tilts back nicely. Good luck!

Yes definitely sort it out got me very interested in watching u sort it.

Keep persevering with it pal. Will make great content I'm sure!

Before you sell it, check out what Darkside Developments did with theirs. Absolute multi-purpose weapon. Pretty sure I saw a vid of it pulling a 40t lorry out of snow! End of the day, could just be a dodgy ground cable, it is a VAG after all, and when it works it's in goodish external shape, be worth a few quid, surely?

Those problems scream water damaged modules. It may have been driven through a neighbours pond at some stage in a moment of madness. The Sills can fill with water and play havoc with the floor mounted modules. I know that from working on Cayennes. The drain plugs get blocked As mentioned already: Check Battery under passenger seat Check BCM and Comfort module The engjne wouldn't start if the ENGINE ecu was damaged

Since there is no communication with any of the modules, check if the diagnostic lines are not cut (sometimes run through a fuse that you remove). It used to be a security solution of sorts.

She looks nice from the outset! Get her going. They are beasts! OBD Carly!

This should be saved and put back on the road. Looking forward to the V10 series!

I've had a couple of Touareg's. Is this not a face-lift version, so after 2007/8? Definitely persevere with this one....I think once the battery is sorted, a lot of the electrical issues will resolve themselves. Love the videos....keep 'em coming 😁

Those electronic issues can be caused by a couple of things #1 water leak onto harness or module #2 . Comfort convenience module taking a dump due to age .#3 incorrect voltage supply etc. ground issues . I gotta say you have empathy for these basket cases but when they go right it's sooo good ,thats why we subscribe and like 👍😎.

My 07 Passat (160k) had similar symptoms 18 months ago.... * All dashboard warning lights illuminated with audible beeps. * Dsg stuck in 'P' * Electric parking brake stuck on. * Vcds not communicating. * Car jump started but would not move. I then did a running test on alternator using a multimeter...This confirmed low voltage output (Common on Valeo alternators).. Purchased new alternator brushes (ebay £12)...Hey Presto...All the above issues fixed...Drastic symptoms leading to easy fix... Not saying this is the cause of your issue but definitely worth testing.

I would check the CCM (control module) You can get water ingress. I had similar issues in my VW

Had a v10 and had nightmare electrics, new battery will solve a good few things, blocked drain plugs by bulkhead can cause a lot of issues, water runs down bulkhead and under thick carpet to electrics under passenger seat. Good luck mate 👍🏻

If it is a 2003 it has had a front end upgrade to the slightly newer shape. There is a common problem on the older cars of the wiring harness under the passenger carpet going up to the firewall degrading and causing all sorts of issues like you describe. Well worth saving if the mechanics are good.

Please keep it and try and get it going Ok. Will be very intesting to see how it pans out, best of luck.

Gotta speak to the guys at Darkside Developments, either for assistance, or for go faster bits!

You love packed engine bays! Next up Bentley W12 twin turbo!

Hi Dean, posting again just to make sure you see this. VCDS will not auto connect to these ECUs (there are 2 for the engine). You have to tell VCDS what car it is and it will then connect. I had the same thing with my Phaeton V10

Get it done up such a rare motor I'm intrested to see it all up n running new interior parts be good to see mate

Continue with it and fix and sell. Good content!

Good luck with this one 🍀 brave man 😁 put in some time and try get it in for an mot 👍

I had a 58plate V10. Does yours have the battery below the passenger seat too? When mine started going funny I replaced both and it started to behave. Also, the key in the dash can be turned anti-clockwise to start with the other battery.

Might be a knackered ignition switch. I had strange electrical issues with my Porsche Boxster S. All linked to the ignition circuit. The ignition switch was the issue and it was an Audi part. All solved with an £11 Meyle replacement. Worth a try.

Replace battery (s) is the first thing I would do, especially secondary battery for electrics,( if it has one) Even with the engine running you may not be getting a good enough voltage to meet electronic requirements.

"A weird whistling noise when I rev it" hahahaha that is a turbo whistle is it not? That thing sounds so bad ass

Required for V10 TDi ownership without financial ruin: unlimited time, patience of a saint, workshop, 2-post lift, engine cradle hoist, VCDS, every other tool known to man...

Save it Dean! Might be the immobiliser and once you’re past that everything will be easy-ish…. Ha! Would love to see it restored to glory

Great video mate

It's the issues, diagnosis, smart fixes and ideas that make a great video SO go for it, you will be rewarded by many likes & viewings

Give it a go could be a nice motor, just don't spend too much, great content as always thanks very much

Stick at it buddy make it good that engine is a beast it will make for a great series.

Looking forward to this one!!!!

you don't half pick em Dean, but it is what you are about you fix alot of stuff people won't touch with a barge pole thats what makes it interesting and great content go for it mucker have a go

Good toerig for ur work wants fixed and ur the man to fix it

Lad there a starting battery under ps seat i think thats ur problem with all the electric problems keep up good work there a beast when u havem right and u will sort it best luck love the content

Check your Terminal 15 voltages in the fuse box. The spare wheel well looks rusty as though it may have been full of water at some point in which case there are some connections in there which may be rotten and dropping the supplied voltage which would cause absolute havoc on the electrics. A simple fix if rectified.

I don't think the suspension likes having doors open when it is adjusting, being keyless I opened my boot while working on mine but left my key inside! Shut the boot and of course it locked immediately. I had to smash the rear light and reach for that white release! Just FYI the drivers side turbo actuator can be changed from underneath if you need to but try and get both of the rod's clean and greased for a start. Others have mentioned the seat battery. The rear one will be fine.

How much moss in the passenger wheel arch 😱😂😂...... Keep going and get the content 👍

Crack on with it Dean because if I know anything it will be like brand new when you have finished with it

Nice bonnet release 👌

Be good to see this one up and running if your patience can stand it! Don't see many of these around and fairly rare on U Tube so would be something a bit different.

Sounds like a beast! I'll be watching closely

When doing that wheel make sure you heat it up before you hammer it or it will crack and snap also the pressure of the tyre could cause it to blow the cracked off piece towards you so also air down the tyre!

Save it mate and crack on get it sorted 👍👍

Yes I think you should sort out the gremlins. V10 is an unusual and interesting car. Will be a fun set of videos, sorting it out

The green indicator on batteries only shows the SG of one cell and so is only a rough guide. Interesting project an unusual and complex car, but the fact that there are so many alarms may be a good thing in the long run as they may all be common. I would persevere as running right this would be a reasonably desirable car -- I think £2.4k was a bit steep though !

Interesting car and looking forward to seeing more videos, £2400 more than it's worth comment was what I was thinking

If you need any insight on issues or have any questions, let me know. I’m very well versed in the V10’s, even having done many “engine out” jobs without pulling the engine. Once you get the small stuff worked out and keep up on regular maintenance, its very reliable. One of the best cars I’ve ever had

V10 has 2 batteries, the one you saw is the secondary one that is only used if you use the key in the ignition turning it counter clockwise before turning it clockwise. The main battery is under the front seat.

Keep it! Would make a perfect towcar for all your other projects. Have a word with Darkside Developments channel. They're running 2 Modified V10's and a V6.

Personally dean I love these motors, would make good content to fix the issues and replace the worn interior components and get it back to match fit. Your cash your call .

I’d like to see you try and fix the Canbus issue. Not seen a video like that before. 😄

Love it! Deffo fix it up, there a lot of good content in it for youtube.

Hi Dean, check fuses first amd make sure you have power at the obd plug but I say bin it mate it’s not worth it as the interior is so worn

Bro, touareg with a water leak. That's mold not moss. Check the splice in the wiring harness at the foot well. It will be gone. Restore power to gateway and the dlc. When you ran the test with vcds it stated no 12v at dlc. I paid $1750 for my v10tdi. It needed a valve body, propshaft and de-sludging. Super solid ride now. And faster than my stage 2 gti.

First of all tried to make an gateway module and check power supply on module.Not only 30+ and ground.And 15+.After ignition.If there is OK You can read the blocks,which work.After this must check can-bus data on gateway module.Secondary tried to do this procedure on Comfort module.

Love the videos. I would try it is excellent content an something different to watch. Cheers