coolant leak

Hi all I recently bought a 2016 61k miles T6 campervan (ad blue). Private sell. Runs well but the coolant light came on after a couple of weeks. Topped up and found the level had dropped again after a couple more weeks. I think I lost about 200ml over 250 miles. Then again I added a similar...

Hi Guys, New to the forum as a contributor but have found the threads immensely useful over the years, finally time to get involved! We have a 2018 204 DSG 4Motion Kombi in our workshop at the moment that is losing coolant. I've read a few threads on T6s with this issue and once a physical...

I know this was covered in many posts but I couldn't find one with symptoms that I'm experiencing. No butter on oil filler cap or oil dip stick. Warms up as usual and keeps 90 degrees temperature. Oil level OK. From my observations it looks like I'm loosing coolant mainly on short trips 15-30...

@mmi : I understand you are a bit of an Oracle when it comes to this subject. Any advice? @Niknak : I've seen you post previously about a link between coolant leaks and NOx sensors failing. Can you please share a bit more info of what the link is? Anyone else have some good advice? I've just...

Looking for some help / advice / experiences about internal coolant issues with ex AA vans. I bought an exAA T6 (150bph 2.0 TDI) with 102k miles that has an internal coolant issue. It has been losing coolant. The ERG cooler has been replaced and the charge cooler has been tested from the place...

It has 170k km My mechanic did a pressure test and found no faults It is losing the coolant unevenly, Once I drove it for 1500km for it to lose the coolant, but sometimes it happens only after 50km, it never happens while driving interestingly it always reports that it doesn't have coolant when...

I’ve got a 2017 T6 2l on 123k miles. Recently been into garage to have glow plugs and injector changed. Since I’ve had van back I’ve noticed the coolant level is going down in coolant bottle. I had no issue with level dropping previously. No obvious leaks. Will contact garage, but would they...

My t6 204 is slowly losing coolant (separate thread). One of the symptoms is that about half a dozen times the starter motor has struggled to turn the engine over. It turns over for a bit then freezes as if there isn’t enough power to turn the engine over. But battery and starter are strong...

I had a low coolant warning the other day, and the header tank was almost empty. There was no obvious signs of a leak, so I topped it up and checked the level over the next few drives (only short thankfully). As the level continued to drop, I’ve just taken the under tray off, to discover a small...

Coolant leak / Mystery. help!! SOS!! Hi everyone. Wondering if anyone can help please. I have a coolant leak / mystery. My van seems to be drinking coolant with no trace? Put approx ltr in a few weeks ago and just had to top it up as the light came on? Anyone else had a similar issue or...

Hello all, My t6 is passing coolant from the oil cooler, it looks to me like one of the seals/ O rings has failed. Does anyone have a diagram to make sure I order the correct part? Hopefully this will solve the issue as I don’t want to replace the full unit! Vin: VE1ZZZ7HZGH082433 Thanks a lot...

Have you had a leaking coolant issue resolved? Please use the poll to tell us what was the cause. If your resolution is not listed please add a reply and we'll add it to the list. Please not discuss you issues in this thread (they will get deleted, start a new topic in the appropriate area)

Looking for a bit of advice as have mystery coolant leak. 66Plate T6 SWB Shuttle 150 manual At approx 48700miles low coolant alarm went, topped up and drove home as no obvious leak. Was due timing belt (on basis of age) and water pump anyway so got this done at 48879. Garage couldn’t find a...

Evening all, Today i noticed and was confirmed (coolant level low ) by the digital dash ! that i had a leak . I rang my local VW Commercial Garage at Preston and explained the problem. I was asked for the registration,which i gave. This is a private plate which i have used on several vans ,but...

There is a coolant leak from the rear of my egr cooler.. It’s hard to explain where, but I’ll try. On the rear of the cooler is a casting which appears bolted to the main cooler body. This has a sensor wire and a couple of pipes to it and the rear egr pipe. In this casting is a small...

Hi all. My engine coolant compartment is bone dry. My wife still thought it's ok to drive it when red thermometer was flashing at her! Can I just get the coolant and replenish myself or do I need to go to garage? Yes, I know I need to find out where the original content had gone. Any advice...

Hi all I recently brought a 66 plate T6 DSG, but have had to return it to the place I brought it from as it has a coolant leak. First of all they Told me they did a pressure test and it didn’t show up a leak so I explained to them that leading up to this, the coolant symbol started flashing and...

Ok so posted a couple of weeks back about my temp gauge beeping and flashing red and indeed as advised it required a small amount of water, about half a cup if that. Since then even though I have seen no signs of a leak I've had to do the same thing twice. So Van was booked in for a service last...