306 D Turbo - heater not working

Hi,

The heater doesn't work on my 306 D Turbo (N reg).

Some folk tell me the heating system needs bleeding - I've bled the two screw valves on the water pipes (one behind the rocker cover and one to the side) but still no heat from the heater.

I've also been told to flush the system - I've heard you can get flushing agent that can be left in the system - is this correct - if so what is it called.

Also I've been told that the heater matrix may need replacing. Is this a big/costly job, and can I do any test first, to be sure it needs replacing.

By the way - no leaks anywhere.

Cheers, Neil

Reply to
puk
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Are the pipes to the matrix getting hot? If so, is the heat mixer flap on the heater working?

Reply to
Nigel

hi first of all check the pipes that go to the matrix are hot if there not check back a long pipes till you come to hot one prob between hot and cold bit ie thermostat blocked pipe or (valve not opening electrical if fitted to your model) if hot go inside car put hand up and feel matrix if hot could just be clip off heat adjuster or snaped cable or fulty valve ie flap not opening and closing water not passing valve

ask for (holts rad flush) to clean water system...and matrix costly and pain to fit and one more point put garden hose to inlet pipe of matrix if water come out the out let it fine cos you have no leaks as you say but remember some matrix have shut of vavels and if this the case and it at fult hose test wont work of corse hope this helps some any probs post back

Reply to
blackknight

Hate to say it, but I tried all sorts, flushing backwards and forwards, but it turned out I needed a new heater matrix. Shop around if going to a Peugoet dealer as the prices I was quoted varied quite a bit,

Neil

Reply to
Neil D

In message , Neil D writes

I'm nearing the time when I expect mine to fail, I've seen them at around 30-40 quid, but did you get a garage to fit it? If so how much was it? If you didn't was it really that much of a pig to do?

Reply to
mike. buckley

Hi Mike, the whole dashboard has to come out to get to the heater matrix. I could've taken it to any garage, but they'd have just been trial and error, which I could have done myself. But as we've looked after the car for 5 years, I wanted the job done properly. I took it to a Peugoet dealer about

50 miles away as they did the job for £278 (and I've just found out they've shut down, I'd have kept using them otherwise). Other quotes varied around £400 - £600. It depends, if you've got a lot of patience and the risk the car being off the road for a couple of days, it could be a nice project. I was frightened by the thought of removing the airbag, but I've had to do that since, to adjust the wheel and I found it easy.

Neil

Reply to
Neil D

Just goes to show how vital it is to change the engine coolant every two years. The problem is that aluminium corrodes very easily. Ethylene Glycol reduces the conductivity of the water (which is required for electrolytic corrosion between aluminium and steel in the engine), and there is also a corrosion inhibitor. Strange how its the heater matrix that goes, not the radiator (which would be easy to replace). Different material?

As Neil says, it is an absolute pig to remove the entire dash board. £300 for the work is a bargain.

Reply to
Hardgrafter

In message , Hardgrafter writes

I specifically requested my coolant be changed at 100k (5 years from new), had the gearbox oil done as well. The garage claimed that they do it every major service, which I actually have no reason not to believe, they were a bloody good local garage (we've since moved), and helped me out quite a few times with tools etc when i was stuck. Fingers crossed that'll delay the matrix job.

Given last nights chaos I'm not sure car will be lasting much longer anyway, jerk in a new 3 series BMW went to overtake a car on a dual carriageway just as I was about to overtake him, just missed him. Later in the evening I hit one of these sticky out pedestrian refuges that somebody had knocked the warning bollard off (pissing it down with rain, visibility s**te, but still mea culpa) I never saw it, flattened the tyre instantly, going into National later to see if the wheel is ok[1]. Then fitting the spare the bloody car nearly rolled off the jack, only just saved it by bunging the spare under the car, letting the car down on the jack and starting again. Not a good day, and this is a week after somebody ran into the back of the SOs Ka. Grim!

[1] Couple on ebay if not
Reply to
mike. buckley

Okay - well, many thanks to all who offered advice. We've done everything apart from replacing the heater matrix !!! bleeding the system, flushing the system twice with two different flush agents, sticking the garden hose directly into the heater matrix pipes in an attempt to blow out any gunk etc. - all to no avail (although there is a slight improvement). Now the heater gets fairly hot -UNTIL- you turn the blower on, then it goes cold very quickly.

The only thing left I suppose is to change the matrix, and I really don't feel like tackling that myself (not being a mechanic!) and it seems getting it done in a garage would be too expensive for me. A simple solution, I thought, to get through the winter would be to use an electric (12v) heater/blower --- does such a beastie exist ? --- If so, where to find one - any ideas?

Thanks again, Neil

Reply to
puk

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