TerraClean Carbon Cleaning
Engine Decarbonising for Petrol & Diesel Vehicles
Over time, carbon deposits build up on injectors, inlet valves and combustion chambers — particularly on vehicles used for short journeys. The result is a gradual loss of power, rougher running and worse fuel economy that drivers often put down to age. TerraClean is a decarbonising service that removes these deposits using the vehicle's own fuel system, without dismantling the engine.
We recommend TerraClean when there is evidence carbon build-up is the problem — poor economy, hesitation, a noisy idle, or as part of resolving DPF and EGR issues on diesels. It is a maintenance service, not a cure-all: if diagnostics point to a mechanical or sensor fault, we will tell you that instead.
What TerraClean can help with
Restoring lost fuel economy
Smoother idle and throttle response
Carbon-related emissions problems before an MOT
Supporting DPF and EGR system health on diesels
Call 01462 420999 and describe the symptoms — we will tell you honestly whether TerraClean or a diagnostic inspection is the right first step for your car.
Frequently asked questions
Will TerraClean fix my DPF problem?
It can help where carbon build-up is contributing, but a blocked DPF usually needs our DPF cleaning and regeneration service. We will assess the car first and recommend the right one.
Is it suitable for petrol and diesel engines?
Yes, the service is available for both petrol and diesel vehicles.
Book your car in with JLR Autocare
29 Wilbury Way, Hitchin, Hertfordshire, SG4 0TW. Call the workshop or book a slot online and we will confirm the price before any work starts.