Thames Valley Electro-Diesel (TVED) established in 1978 as Philjohn Diesel Injection Services. Thames Valley Electro-Diesel can Diagnose, Test and Repair most types of Diesel Injection Equipment including BOSCH, DELPHI, DENSO, LUCAS, BRYCE and CAV from the earliest to the latest Common Rail Systems. Thames Valley Electro-Diesel also have a large Auto Electrical facility featuring Exide Batteries, Hella, Britax, Sealy and many more. Eberspacher Heating is also part of the Thames Valley Electro- Diesel portfolio.