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How to bypass the heater matrix?
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jackpf

Posted: Thu Mar 24, 2016 5:25 am

Joined: Mar 11, 2016
Posts: 3
Trade Rating: 0

Hi, I have leaking coolant in the passenger footwell, and from reading up it seems like this is the heater matrix leaking. It seems like replacing the entire heater is a difficult job, and I'm not too bothered about being warm, so is there any way to simply bypass the heater matrix? Google isn't being too helpful. Cheers, Jack

David1156

Posted: Thu Mar 24, 2016 7:04 am

Joined: Dec 26, 2013
Posts: 326
Trade Rating: +1
Location: East London

You may be able to block the pipes before the bulkhead but don't quote me on it. It's not really that difficult to do as you don't have to take out the dash despite what everyone says. I personally ran half a bottle of radweld through the system


	Current: Albi Blue Clio 197 Previous: EZR 1.1 206 Zest 3 5dr

jackpf

Posted: Thu Mar 24, 2016 7:36 am

Joined: Mar 11, 2016
Posts: 3
Trade Rating: 0

David1156 wrote:

You may be able to block the pipes before the bulkhead but don't quote me on it. It's not really that difficult to do as you don't have to take out the dash despite what everyone says. I personally ran half a bottle of radweld through the system

Ah cheers, I'll give it a go.

I have seen videos of doing it without taking out the dash but it still looks a bit complicated and I need a bit of a short term fix for now.

Cheers.

Edward

Posted: Fri Mar 25, 2016 4:39 am

Joined: Feb 08, 2010
Posts: 7045
Trade Rating: +5
Location: In the garage

It doesn't just keep you warm though. It helps stop windows from steaming up.


	2001 GTi 138, Bilstein Sprint dampers, H&R springs, 21mm Peugeot Sport torsion bars, 22mm rear ARB, Peugeot Sport Group A wishbones, 283mm discs, Goodridge stainless hoses, Maniflow 304 grade 4-2-1 2.5" manifold and system, 200 cell cat, Richard Longman head, 45mm Jenvey throttle bodies, 9.5mm TB spacers, 90mm air horns, Jenvey throttle linkage, Jenvey fuel rail, Aeromotive and Goodridge fuel fittings and braided hose, ITG sausage filter, Radtec custom radiator, Piper Ultimate Road cams, Piper vernier pulleys, Omex 600 ECU. Saxo electric PAS pump, Vibra Technics engine mounts. Samco coolant hoses, TTV steel flywheel, 4.76 final drive ratio, 307 CC 180 ratios. 2019 BMW 530i. 2017 Mercedes C300 convertible.

jackpf

Posted: Fri Mar 25, 2016 6:34 am

Joined: Mar 11, 2016
Posts: 3
Trade Rating: 0

Edward wrote:

It doesn't just keep you warm though. It helps stop windows from steaming up.

Can be done by opening a window though Smile

not gonna be pleasant in winter but I'd rather have a working engine than be nice and toasty!

Edward

Posted: Fri Mar 25, 2016 10:22 am

Joined: Feb 08, 2010
Posts: 7045
Trade Rating: +5
Location: In the garage

Opening a window won't dry the windscreen.


	2001 GTi 138, Bilstein Sprint dampers, H&R springs, 21mm Peugeot Sport torsion bars, 22mm rear ARB, Peugeot Sport Group A wishbones, 283mm discs, Goodridge stainless hoses, Maniflow 304 grade 4-2-1 2.5" manifold and system, 200 cell cat, Richard Longman head, 45mm Jenvey throttle bodies, 9.5mm TB spacers, 90mm air horns, Jenvey throttle linkage, Jenvey fuel rail, Aeromotive and Goodridge fuel fittings and braided hose, ITG sausage filter, Radtec custom radiator, Piper Ultimate Road cams, Piper vernier pulleys, Omex 600 ECU. Saxo electric PAS pump, Vibra Technics engine mounts. Samco coolant hoses, TTV steel flywheel, 4.76 final drive ratio, 307 CC 180 ratios. 2019 BMW 530i. 2017 Mercedes C300 convertible.

FrankAteMyName

Posted: Sun Mar 27, 2016 2:17 am

Joined: Aug 11, 2015
Posts: 175
Trade Rating: 0
Location: Tewkesbury

I had to drive with the matrix bypassed for quite a while but it is doable - even if dangerous. Just make sure if this get steamy you pull over and make sure you can see.

Generally, blocking coolant pipes is considered bad practice so I'd avoid that for obvious reasons.

However, making a u bend out of PVC pipe offcuts works as I have done it. You'll need 3 little offcuts and 2 elbow joints. A couple of O rings should keep it all together. Try and get the pipe just a little thicker than the two rubber pipes on the engine side of the bulkhead (the ones that go to the matrix). Unplug those, stick the u bend in and bleed the system and hey presto leak averted.

I'll upload a picture later or Tuesday.

Remember: 9 times out of 10 the matrix itself if sound but coolant is actually leaking from the 2 plates where the plastic pipes join the matrix. If this is the case it can be fixed with any generic O ring set or you can get them from Peugeot for £15.

I have the part number somewhere but if you ask for the heater matrix piping and O rings they'll know what you mean. Make sure to check for leaks before buying a new matrix.

Hope that helps.


	My cars: 206 Urban 1.4 8v 3dr '56 - China Blue - 70k Miles - Climate control retrofit, cruise control retrofit - Dead (Breaking) 206 GLX 1.4 8v 3dr '03 - 100k Miles - Obsidian Black - Black masked headlights + front fogs, Faster sunroof, Colour matched exterior trim - SOLD 206 2.0 GTI 138 '03 - 58k Miles - Onyx Black - 17" 180 Alloys - Current 206 2.0 GTi 138 '03 - 120k Miles - China Blue - New Track Toy (ON THE WAY)

Timon2210

Posted: Mon Mar 28, 2016 2:40 am

Joined: Feb 10, 2010
Posts: 4266
Trade Rating: +4
Location: Palestine

Just get things done right,and fix the heater matrix leak,as this is the right thing to do for your safety,my car is LHD,and got the heater matrix out and fixed the leak I had from the o-rings,other have a bad matrix,which you can replace easily


	My 206 Project-Pride & Joy

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