Air conditioning Retrofit Project Diary
Discussion
Hi all
I ve started fitting air conditioning to my 1998 TVR Chimaera 500. Thought I d start this thread to keep track of the progress, share updates, and hopefully give myself a bit of motivation to get it finished sooner rather than later.
The car didn t come with air con, so I m starting completely from scratch. I ll post part numbers, costs, and anything I end up paying for in terms of labour.
The plan is to end up with a proper modern system that makes the car a lot more comfy for summer road trips around Europe.
Let s see how it goes
Andrew
——————
Parts & Cost Summary:
Dorman 626 001 Engine Heater Core Bypass Kit
£35.61 https://amzn.eu/d/aEriW8n
Labour Summary:
4h @ £85+ VAT (Taylor TVR to remove existing heating): £408
I ve started fitting air conditioning to my 1998 TVR Chimaera 500. Thought I d start this thread to keep track of the progress, share updates, and hopefully give myself a bit of motivation to get it finished sooner rather than later.
The car didn t come with air con, so I m starting completely from scratch. I ll post part numbers, costs, and anything I end up paying for in terms of labour.
The plan is to end up with a proper modern system that makes the car a lot more comfy for summer road trips around Europe.
Let s see how it goes
Andrew
——————
Parts & Cost Summary:
Dorman 626 001 Engine Heater Core Bypass Kit
£35.61 https://amzn.eu/d/aEriW8n
Labour Summary:
4h @ £85+ VAT (Taylor TVR to remove existing heating): £408
Edited by andrew_r on Sunday 15th June 19:16
Edited by andrew_r on Sunday 15th June 19:23
Step 1: Rip out the old heating and cooling system
While the car was in for its annual service with Dan at Taylor TVR, I asked him to take out the original heating and cooling setup and fit a bypass I had sourced myself. The bypass is a U shaped pipe that connects the heater pipes coming from the engine bay. These pipes used to carry water into and out of the heater matrix. Since I am not using a matrix anymore, the pipes either needed blocking off or linking together. I went for the linking option using the bypass, after spotting this clever idea in a thread:
https://www.pistonheads.com/gassing/topic.asp?h=0&...
The bypass I bought was the Dorman 626 001 Engine Heater Core Bypass Kit, Universal Fit. Cost me £35 on Amazon.
Big thanks to Dan for getting this job done, as I had heard it could be a real pain to remove. He got it all out in about four hours.
Here’s what came out of the car:

Andrew.
While the car was in for its annual service with Dan at Taylor TVR, I asked him to take out the original heating and cooling setup and fit a bypass I had sourced myself. The bypass is a U shaped pipe that connects the heater pipes coming from the engine bay. These pipes used to carry water into and out of the heater matrix. Since I am not using a matrix anymore, the pipes either needed blocking off or linking together. I went for the linking option using the bypass, after spotting this clever idea in a thread:
https://www.pistonheads.com/gassing/topic.asp?h=0&...
The bypass I bought was the Dorman 626 001 Engine Heater Core Bypass Kit, Universal Fit. Cost me £35 on Amazon.
Big thanks to Dan for getting this job done, as I had heard it could be a real pain to remove. He got it all out in about four hours.
Here’s what came out of the car:
Andrew.
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