M
Quick how to below:
- remove sink unit and bowl (4x Allen screws under the sink and use a scalpel to cut mastic. Bowl 4 more Allen screws)
- completely remove the tap (you'll need a plumber's spanner shown in the picture below)
- note the tap tails will not push back in because they are secured by a stainless steel location pin (shown in pictures below) which locates a collar on the nylon tail connector. You'll need to access both sides of the tap to remove the pin. Hence having to remove the tap
- remove stainless location pin which is an easy push fit (use a 3mm Allen key or similar)
- push the nylon tail connector back in (a bit of silicon grease will help but it's an easy push fit). Push the location pin back in
- make sure all 3 pipes are secured correctly
- reassemble and enjoy your non leaking van.
Anyway I hope this helps.
It's a bit of a faff but definitely doable if you take your time don't try a force things.
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Mike,
Thanks so much for this and especially the pics and clear explanation. Live in Finland so it gets cold. Had the van inspected at VW under warranty - obviously this was not covered as our fault for not draining the water system properly. Also told that the complete tap/shower assembly needed to be replaced they estimated 3-4 hours labour plus parts (between €750 and €1000) so ordered it from VW for €240 plus 20 postage to do the job myself.
Then read this, stripped down the sink and saw that the cold water supply had partially popped off put it back in, reassembled and everything works. Further reading - this is a design feature by the tap assembly manufacturer to protect the tap in the event of freezing.
Complained (let the wife do that as it's on a different level) that we were badly advised and to be fair, VW have refunded the €260 - they don't want the tap/shower assembly back and will compensate with 50% off our first service so a genuine win. If anyone wants a brand new boxed tap assembly, let me know!!!
Yes the job is fiddly and cramped but easily done with a modicum of mechanical experience. Top tips from my experience:
Take the door off the cabinet per Mike's photos
Scalpel rather than craft knife for the sealant.
Watch out for the 4th under sink bolt - it hides behind the sink drainage plumbing - took some pulling on the sink to realise it's there and put that one back first as I could not get it in last so had to remove the other 3 and start again.
Securing pin for the plumbing on the tap base - a real top tip from Mike - the dislodged pipe will not re-engage unless it is removed - I would have missed this.
Managed to undo the tap assembly with a pipe wrench and get it back but difficult - would advise using the plumber's spanner as per Mike, if available. Be really careful and patient when putting the mounting nut back on as the plastic thread on the tap base is easily damaged. Patience and make sure the thread is sitting properly - don't just graunch it on and wreck the plastic thread.
I found removing the plastic shroud that covers the plumbing in the top half of the cabinet useful (4 screws) as it allows you to see if there are any leaks when testing the system.
Plan on 4 hours to do it.
Finally - test the system for integrity prior to reassembling using a bucket - you really do not want to be on your back with the bathroom door ledge sticking into to strip it down again!!!!
First pic shows cold water pipe slightly dislodged - retaining pin still in situ. Second - reinserting cold water feed, retaining pin removed.
Thanks, again Mike and other contributors to this
