Hymer Dynamic Line Water Ingress Issues

[Stewart J]

@Stewart J , How long are planning on staying in Spain for? Would a trip to Bad Waldsee be a possibility? It's not a bad drive from Roses. We've done it in the past, with our previous van and the south of Germany is worth the trip, in its own right.
You could email your photos to them and ask for an appointment. servicecenter@hymer.com
Tel +49 (0) 7524999116
They do speak English, and you can stay on their aire while they do the work.
It's 3 days easy drive from Bad Waldsee to Calais, but possible in 2 days.

Hi bellabee, good advice unfortunately we cannot our ferry is booked from Bilbao to Portsmouth on 8th November.
Have a further update it is definitely water ingress and will post my findings later.

 

[bellabee]

I've just been looking at your latest facebook posts, @Stewart J . I hope you're getting somewhere with this, now.

 

[Stewart J]

I've just been looking at your latest facebook posts, @Stewart J . I hope you're getting somewhere with this, now.

Will post here for benefit of others not in the fb Group

 

[CazPaul]

Will post here for benefit of others not in the fb Group

I just replied to the FB post Stewart.

 

[Stewart J]

An update. After almost two days of rain often prolonged but no wind once it cleared checks carried out again. Lifted garage floor mat slight dampness. Garage alcove base swimming in water. Underbed wardrobe lower floor inspected and found puddled with water all at rear side of wheel arch liner upto alcove front panel. Mopped it out estimate 200-250 mls of water removed. It’s not possible to see across wheel arch liner so tried a few photos, also Convinced I could feel a slight draft when feeling liner and side of van. First three photos show underfloor and water last looking to sidewall of van panel at right is rear panel of alcove majority of water had been mopped up when this was taken. Suspicion is the wheel arch liner seal is allowing water to pass, not a quick fix methinks.

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[Speve]

Thanks @Stewart J for posting your findings I will be keeping an eye on ours..hope you find a quick solution though it looks like it’s going to be difficult to get at?

 

[Stewart J]

Thanks @Stewart J for posting your findings I will be keeping an eye on ours..hope you find a quick solution though it looks like it’s going to be difficult to get at?

My engineers head says it’s not going to be an easy fix Alan, space is shallow, restricted and very cluttered, suspect seal/sealant fitted at the build up stage. Then we have 4 vans that I know of with the identical problem, brand new 2016/2017 model range begs the question is it a design fault?

 

[Gellyneck]

Probably me being stoopit but .... Is that a crack in the fibreglass(?)?

 

[Stewart J]

It’s not fibreglass that’s the top side of the double floor it’s not a crack but a stringy bit of sealant stuck to it. Sorry cannot post emojis Gellyneck never have been able to on Fun. ;0)

 

[Stewart J]

Showers forecast 5o orrow if they don’t appear OH will be assisting simulating them with a watering can so I can investigate further

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[bellabee]

Sorry to be thick, Stewart, and maybe I'm misunderstanding where the water's getting in, but I don't understand how water is getting in through the wheel arch in a stationary vehicle . Or did you go for a drive?
I'm not doubting your theory, I'd just like to understand.
Thanks

 

[Lenny HB]

Not good Stewart. Would it get in via the wheel arch if you are parked up?
Are all the other vans affected RHD if so it could be a batch problem rather than a design fault.
You are starting to make me wish I'd put up with the poor shower in a Carthago we nearly bought one instead of the Hymer.

 

[CazPaul]

Not good Stewart. Would it get in via the wheel arch if you are parked up?
Are all the other vans affected RHD if so it could be a batch problem rather than a design fault.
You are starting to make me wish I'd put up with the poor shower in a Carthago we nearly bought one instead of the Hymer.

There was a post on here last week I think, water p1ssing in a Carthago garage, new model too, also a gap behind some exterior trim, sounds just like Stewarts problem.

 

[Stewart J]

Sorry to be thick, Stewart, and maybe I'm misunderstanding where the water's getting in, but I don't understand how water is getting in through the wheel arch in a stationary vehicle . Or did you go for a drive?
I'm not doubting your theory, I'd just like to understand.
Thanks

No mate van has been stationary for almost 4 weeks, Although difficult (read impossible) to see inner side wall of van through the opening into the double floor, my suspicion is water running down side in rain then is passing the outer wheel arch seal and entering the van someway in region of wheel arch insert through a defective seal or failed one. As said it was not windy so rain was not driven or forced, more tests on my theory tomorrow,

 

[Stewart J]

Not good Stewart. Would it get in via the wheel arch if you are parked up?
Are all the other vans affected RHD if so it could be a batch problem rather than a design fault.
You are starting to make me wish I'd put up with the poor shower in a Carthago we nearly bought one instead of the Hymer.

Hi Lenny we are parked up and water is entering so something has failed recently possibly because of a (design?) problem, 4 vans of similar age with an identical fault not good is it?

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[Lenny HB]

Hi Lenny we are parked up and water is entering so something has failed recently possibly because of a design problem, 4 vans of similar age with an identical fault not good is it?

Are the all RHD I'm trying to find out if it's just a batch problem or likely to happen to my van.

 

[Stewart J]

3 are rhd don’t have info on the other Lenny, but it’s appears this has not materialised from day one, so maybe something has failed/ fretted through due to vibration or whatever. Can you access the double floor on (UK) offside in way of rear end of the wheel arch liner to check for rust spotting or water run staining on top of lower floor?

 

[Lenny HB]

3 are rhd don’t have info on the other Lenny, but it’s appears this has not materialised from day one, so maybe something has failed/ fretted through due to vibration or whatever. Can you access the double floor on (UK) offside in way of rear end of the wheel arch liner to check for rust spotting or water run staining on top of lower floor?

I take it you mean under the lift out tray in the under bed wardrobe.
Just had a grovel under there with a torch, looks fine all screw nice and bright no sign of any moisture.

 

[Larrynwin]

Any different models involved or are the problem ones those with garage ?
One B544 reported #8 but entry through mastic on cycle rack. I would be looking in roof / wall joint area.

 

[Lenny HB]

Any different models involved or are the problem ones those with garage ?
One B544 reported #8 but entry through mastic on cycle rack. I would be looking in roof / wall joint area.

I think we are just talking about the DL but all the latest Hymer's have a similar construction with aluminium/PU foam/aluminium sandwich walls.

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[Larrynwin]

I think we are just talking about the DL but all the latest Hymer's have a similar construction with aluminium/PU foam/aluminium sandwich walls.

So much relies on the consistency of mastic application on joints, slightest gap especially at roof level and water could end up anywhere.

 

[Lenny HB]

So much relies on the consistency of mastic application on joints, slightest gap especially at roof level and water could end up anywhere.

True but apart from the timber internal panels that Stewart has trouble with, no damage can be done to the shell as no timber at all, inner walls are aluminium, under floor GRP.

 

[bellabee]

Are we also looking at ingress only on the GB off side? Or has anyone experienced it on the other side? If only on the one side, why could that be?
I don't know about the other models, but in the 588, it would be potentially more difficult to detect on the other side, because the wardrobe floor is completely covered over. Unlike on the off side, it does not have a removable container in the bottom.

 

[Lenny HB]

Are we also looking at ingress only on the GB off side? Or has anyone experienced it on the other side? If only on the one side, why could that be?
I don't know about the other models, but in the 588, it would be potentially more difficult to detect on the other side, because the wardrobe floor is completely covered over. Unlike on the off side, it does not have a removable container in the bottom.

678 is the same, you could have a look around with an enduroscope (get ones which plug into your phone for a tenner on eBay) access under the laundry bag.

 

[Stewart J]

Big breakthrough this morning, rain is only light and patchy so used a watering can on the wheel arch capping, did this twice 9 litres each time and immediately water started to appear around base of wheel arch liner on lower floor. Dried up after first test then tried again this time running the water down van only over rear half of capping. Same result water entered immediately. In second photo the water puddling across the lower floor shows how serious the ingress is.

The wine glass photo shows the amount mopped up and squeezed out of paper towels, quite a suprising amount for a pour of 9 litres. Gaffer tape is going to look unsightly but need to seal or hinder ingress on the road home.

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[peterc10]

Hmmmmmmm ...... I have a 2015 B678 and am going to have a test on it to make sure I do not suffer from this.

 

[Lenny HB]

Thought you had poured a glass of something stronger to celebrate.

That really is surprising Stewart I would never have suspected that. At least it's not a major problem with the body construction.
A bit surprised that much gets past the seal between the the body and the wheel arch but that is more of a trim Hymers never used to have that seal.

 

[Stewart J]

Are we also looking at ingress only on the GB off side? Or has anyone experienced it on the other side? If only on the one side, why could that be?
I don't know about the other models, but in the 588, it would be potentially more difficult to detect on the other side, because the wardrobe floor is completely covered over. Unlike on the off side, it does not have a removable container in the bottom.

Hi Bellabee, till now it’s only apparent on GB offside, water ingress via wheel arch seal is puddlling on surface of lower floor and seeping under the back panel of the garage alcove soaking base of shelf and being absorbed by the lightweight ply panels mine have thickened-and distorted, rear one is soft and spongy. From there it is running down plastic facing onto garage floor and under the mat. Capillary action I am guessing is then allowing it to spread across the floor. The garage alcove on the near side shows no draining and if tapped gives a nice knock unlike the other side.

 

[Stewart J]

Thought you had poured a glass of something stronger to celebrate.

That really is surprising Stewart I would never have suspected that. At least it's not a major problem with the body construction.
A bit surprised that much gets past the seal between the the body and the wheel arch but that is more of a trim Hymers never used to have that seal.

Hi Lenny, van is coming up 22 months old it’s only become apparent from distortion of alcove chipboard panels probably been happening for a while, weather has been very dry and hot till this last couple of weeks so all seemed ok. I am guessing something has failed maybe due to vibration when on the road possibly a design issue.

 

[Stewart J]

Bellabee just had a thought on U.K. nearside the gas locker is above the garage alcove, this locker has a gas drop in its base so if any leakage on that side it would not show at the alcove. Now I have worried myself.

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