Replacing Heater Matrix

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no1_jazz
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Post Sun Jun 17, 2012 9:37 pm

Hi Zoners, just thought I’d share with you all my experience with replacing my heater matrix. it was about time driving around with no heating and the windscreen steaming up having the windows down whilst it was raining was getting annoying ”¦”¦took a few pictures along the way.

The heater matrix was leaking a considerable amount in the passengers foot-well.

I took both my front seats out as it was just a matter of quickly taking of four 17mm bolts on each seat and up and out they came. I did this for space and manoeuvrability.

Took the centre interior panels off, to gain access to the heater box and this is where it got a little tricky.

Guys do remember this is not a step by step guide.

Some pictures below:

After taking of the glove box out:
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Took off the air diverter duct which is held on with one screw..
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Then took of the two 8mm bolts holding on the valve..
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Carefully removing it making sure I cause no damage”¦ just before this I had disconnected the two pipes coming in from the engine bay through the bulkhead connecting on to these two pipes.. after removing the two 8mm bolts push out twards the engine and then pull left and slide back and out it should come. Making sure you have disconnected the clip on the top of the valve.
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Before taking the last two bolts of for the remaining water pipe it is ideal if you remove your break servo bracket which is held on with four 13mm bolts and four 13mm nuts. There are two pins which connect to the master cylinder and the connecting rod to the brake pedal, be sure to remove these to gain access the nuts which screw on to the back of the break master cylinder.
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The two upper 13mm bolts of break servo bracket..
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After taking out the pins you can access the four 13mm nuts screwed onto the back of the wall:
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Bracket is off
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After the bracket is out I then walked over to the bonnet pulled the master cylinder out and then pushed a little down to give me clearance to take out the matrix.
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Taking off the last 8mm bolt holding the other pipe this was a little back breaking and awkward to say the least lol
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Finally”¦
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There are three torx small screws I took just one of them out earlier to drain any access water + coolant as shown
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About 3 of these come out
After taking the other two torx screw out comes the old heater matrix
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Old and new
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New one inserted after soaking up all the water in the heater box:
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Guys this is it for today I shall continue tomorrow and show everything back together. Again this is no professional guide as I know I have left loads out however it’s just a few snaps of my progress as of this afternoon.

Hope you all like.. if anybody could give me a few tips or pointers which I can do putting the new one in.

All help is much appreciated
Regards
Jazz
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harry_p
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Post Sun Jun 17, 2012 9:51 pm

Refitting is the reverse of removal :wink:

Looks a bit of a pain in the arse, but not as bad as many would have you believe.
cheers,

harry
magpie
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Post Sun Jun 17, 2012 9:53 pm

nasty job,good work Jazz 8)
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tonybtonyb
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Post Sun Jun 17, 2012 10:41 pm

A job well done fella.. :cool:
They don't make bm's like this anymore!..They should.
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no1_jazz
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Post Tue Jun 19, 2012 12:02 pm

all done finally heating all working fine now

thanks guys
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aimlessrock
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Post Thu Jun 21, 2012 8:01 pm

nice work jazz
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Emm3
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Post Thu Jun 21, 2012 10:42 pm

When I did this job, once the pipes in the bay were removed I used a vac that extracts water and extracted the water from one of the outlets in the bay this removed all water from the valve and the matrix which meant no more coolant leaked on the carpets when the valve and other fitting were split
iceox
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Post Fri Jun 22, 2012 6:02 pm

cheers buddy, needing to do this soon. smash this badboy in my favourites!
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manse73
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Post Fri Jun 22, 2012 11:06 pm

well done makes it look easy
bruv chariots rule
no1_jazz
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Post Sat Jun 23, 2012 10:32 am

Glad you all like it something to give you all a rough idea of how its done I guess is good.

manse73 thanks however it was fairly easy just a little tricky and back breaking lol

if there is anything i can help you on with this feel free to ask. :cool: