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During the last 30 years we have invested heavily in purchasing the correct Rolls-Royce and Bentley test boxes to assist in efficient and accurate diagnosis of problems. The equipment ranges from the air conditioning test box for the Silver Shadow II and Bentley T2, right the way through to the VAS 5052A Bluetooth Diagnostic for current Bentley models to include later generation Arnage, as well as Brooklands and Mulsanne.

We have also invested heavily in proprietary equipment such as the Pico 4 channel diagnostic analyser facility. We have made bespoke plug in adaptions to the system to enable live on board ABS diagnostics while driving.

We have also made bespoke test equipment for air conditioning ECU's as well as seat control ECU's. Michael Digby, our senior electrician, made both of these as part of his entry into the apprentice award scheme run by the Worshipful Company of Coachmakers and Harness Makers in London. He obtained the runner up prize for his work for which we are very proud.

Michael is a critical and integral part of the team at Hillier Hill and his expertise in analysing and diagnosing problems and electrical faults is a major asset and one of the main reasons why Hillier Hill are one of the field leaders in terms of Rolls-Royce and Bentley diagnostics.

Hillier Hill is one of the very few Rolls-Royce and Bentley specialists who employs not just one, but two full time Rolls-Royce and Bentley electricians to provide a complete and comprehensive Rolls-Royce and Bentley electrical service. This gives us an unrivalled level of expertise and knowledge, in what is probably the most complex area of Rolls-Royce and Bentley service, repair and restoration.

Major electrical overhaul on a Silver Wraith II
Interior taken away revealing wiring on a Seraph
Seraph Interior Components
Dashboard expoxed revealing wiring of Bentley Continental Drophead
Close up of wiring of Bentley Continental Drophead
Bentley S1 instruments
Air Conditioning ECU
Bentley S1 dashboard
Delco Remy distributor