All. After diagnosis by my local garage, I am told that my poor runninh problems are related to the warm up regulator. Since the prices for this component vary wildly across the different websites, does anyone have experience of purchasing the Bosch version in the UK. If so please could you provide cost details and Bosch part numbers, alternatively if anyone has sourced this component from the US please can you advise me where from. Many thanks. John Chapelhow DOC 19 : 'Boeing' 0737