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car mechanic help required please...heater matrix blocked


Fisherman Mike
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Hi Guys…

I have to try and clean out the heater matrix on my sons clio this weekend it’s pretty badly gunked up and although I did flush it last year with a little success it still hardly gets warm. I don’t want to replace it because it’s a pig of a job stripping out the dash, consul, steering wheel, sterio, fascia etc etc to get to it.

Is there a product I can buy which I can fill it with and leave it overnight to work away and loosen the carp inside before jetting or blowing it out again…. Something like a HD descaler..??

Thanks as always

FM

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washing powder,

 

non bio

 

leave in the heater matrix overnight, then flush out the following day with a hose.

 

worked for me! lol

 

alternatively, forte degreaser used in the same way.

+1 been using this method a long time on gunked up cooling systems. First started using in when the oil coolers were failing on the astra 1.7dti. Works a treat.

 

Karpman

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  • 2 weeks later...

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