Garrett Motion (Honeywell)
One of the largest manufacturers in the world. GT, GTA, GTB and the newer G-series variable geometry (VNT) turbos are found on VW, Audi, Ford, Renault, Peugeot, BMW, Mercedes-Benz, Hyundai and many more – often with Hella or Garrett electronic actuators.
BorgWarner (KKK, Schwitzer)
Successor to Germany’s KKK. K03, K04, BV39, BV43, KP35, KP39 turbos and R2S two-stage systems are widely used by VAG, BMW, Opel, Volvo, Mercedes-Benz and Hyundai/Kia.
Mitsubishi Heavy Industries (MHI)
TD025, TD03, TD04 and TF035 turbos are common on Mitsubishi, Hyundai, Kia, Volvo, Ford, Peugeot, Citroën, Opel and BMW. Known for reliability but sensitive to oil quality.
IHI
Japanese manufacturer – RHF3, RHF4, RHF5 and RHV4 turbos on Toyota, Mazda, Subaru, Opel, Fiat, Mini, BMW, Mercedes-Benz and Isuzu.
Holset (Cummins)
Mostly found on vans, pickups and heavier engines – Iveco, Ford Transit, Volkswagen Crafter, Dodge/RAM with Cummins.
Continental
A relatively new player making turbos for VW Group petrol engines (1.0 and 1.4 TSI), Ford EcoBoost and other modern small-capacity engines.
BMTS (Bosch Mahle Turbo Systems)
Turbos for VW, Mercedes-Benz, BMW and Porsche engines, including modern variable geometry versions with electronic control.
Toyota (CT), Hitachi and others
Turbos made in-house by car makers, plus rarer models – we assess whether repair is possible case by case.