mavis.d Posted March 21, 2019 Report Share Posted March 21, 2019 (edited) Jumped in the car on Monday to drive home to find the from screen covered in thick mist that wouldn't clear and a overheating coolant smell. The water temperature remained normal, after a bit of research the heater matrix seemed the most likely culprit. As it turns out it's not that big a job as it is on normal cars where the heater matrix sits on the inside of the bulkhead in a Boxster it 's on the outside so easy replacement. I expected the matrix to quite expensive OEM £416 or Hella £120. Guess which way I went? Hella, correct. Anyway this how to swap one out. Remove the wiper arms, then the 3 Torx screws on the plastic scuttle At either edge of the windscreen are 2 nuts Disconnect the wiring to heated washer jets and remove the wiper scuttle in the centre you can see where the matrix is, behind the battery under the membrane Remove the wiper motor 3 screws,no need to disconnect the wiring just move to one side Disconnect the 2 struts, 3 screws each Clamp the two hoses Remove the membrane and undo the jubilee clips The matrix is held in by two screws and spring clips Reverse the procedure to finish off. You may will need to bleed the coolant system after I filled the matrix up with coolant before I put it back in. Edited March 21, 2019 by mavis.d error 1 Quote Link to comment Share on other sites More sharing options...
Bluepork03 Posted March 22, 2019 Report Share Posted March 22, 2019 Excellent "How To"! Thanks for taking the time to document this and share it. Quote Link to comment Share on other sites More sharing options...
Cromeika Posted August 14, 2021 Report Share Posted August 14, 2021 Hi, replying to a post from a while ago but I tried this and got to the last stage where I was to pull the matrix out.. but the metal bar with the green tape was preventing me from lifting the matrix out.. what did you do to lift the matrix out? Quote Link to comment Share on other sites More sharing options...
mavis.d Posted August 25, 2021 Author Report Share Posted August 25, 2021 On 8/14/2021 at 7:42 AM, Cromeika said: Hi, replying to a post from a while ago but I tried this and got to the last stage where I was to pull the matrix out.. but the metal bar with the green tape was preventing me from lifting the matrix out.. what did you do to lift the matrix out? Kmowing me probably just forced it out of the way! Quote Link to comment Share on other sites More sharing options...
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