Help needed with heater control valve

[zmon1300]

Hi guys first time poster here,

I bought a 2004 Porsche Boxster tiptronic. I replaced the water pump and thermostat and as soon as I went to add coolant into the system, it all leaked out on the right rear side near the wheel so then I removed the tire and it seems like the heater control valve has separated from the plastic flange. The space is so tight. I could barely get a set of pliers in there to remove the clamps has anyone done this job before that has some tips or tricks to make this job easier? I’ve already removed the triangle brace and cover, but there still is not much access. Is there anything else I should remove to get more space? There is not much information online regarding this, but what I found is, I may need to remove the muffler and lower the engine and transmission. Anyone have any experience with this and can provide detailed instructions?

Thanks in advance.

[JFP in PA]

You need to lower the rear of the engine/transmission slightly to gain access to the valve.

[zmon1300]

Got a link on how to do that?

[JFP in PA]

No, but you need to remove the mounts attached to the transmission while supporting the trans, then lower it to you have access.

[Beelzy]

I simply removed the line at the cooler, then snaked it out.
Even reused the tiny o-ring on the tube flange.

[zmon1300]

Update: FINALLY GOT IT OUT!

For those that are tackling this job what I would recommend is to put a jack on the transmission, remove the two bolts on the sides of the transmission mount and remove the subframe bolts and then slowly lower the transmission a few inches and you will have enough space to fit a 45° extended plier in that spot to remove the clamps and easily replaced that valve.

Also, I replaced the coolant level sensor that sits in the bottom of the coolant tank but still get the flashing red light in the dash. Any suggestions on how to fix that? And will be tackling the AOS next so if anyone has tips on that, I would appreciate it.

Thanks all for the help!

[zmon1300]

Update on this I had to remove the transmission mount bolts and slowly lower the transmission to get enough space to get my hand in there to replace the heater control valve. Thanks for all the help. Going to create a new thread for the other issues