Welcome to the Diesel Technical Bulletin Library

Our technical bulletins (TBs) are created when we encounter three or more related issues whilst providing diagnostic support. Making our technical bulletins the first point of call for Diesel Help members.

Make the best use of the library by using the below search, or make and model drop down.

Tests & adjustments for all diesels

Mercedes P2002-92,, Isuzu D-Max P2227, Navara surging difficult to start

QUICK TIP #9 – MERCEDES X- CLASS DPF fault. No comms via scan tool

Mitsubishi DPF Faults, Mitsubishi intermittent surge, Mitsubishi difficult start cold

TB1292 – Mitsubishi Triton Pajero Challenger DPF fault related symptoms and DPF fault codes

Isuzu N series P242F

TB1298 – ISUZU N series with 4HK1 engine P242F DPF fault

Mercedes Benz Actros MP4, MERCEDES-BENZ Actros

TB1297 – MERCEDES-BENZ Actros 4 963 loss of power excessive black smoke fault code 35040E

Ford Ranger PX3 P244D, Ford Ranger PX3 P046013

TB1296 – Ford Ranger PX3 P046013 fuel level sensor A circuit P246C00 DPF restriction forced limited power

Mazda CX-5

TB1295 – Mazda CX5 and Mazda 6 P029900 turbo under boost

AUDI Q7 P2149, VW Touareg P2149

TB1294 – VW TOUAREG 3.0L V6 P2149 Fuel injector group 2 supply voltage circuit/open

AUDI Q7 P2149, VW Touareg P2149

TB1293 – AUDI Q7 3.0L V6 P2149 Fuel injector group 2 supply voltage circuit/open

Software Updates, Isuzu DPF Faults

TB1291 – Isuzu D-Max and MU-X DPF fault related symptoms and DPF fault codes

Mercedes P2002-92,, Isuzu D-Max P2227, Navara surging difficult to start

QUICK TIP #8 – Nissan Navara D40 V9X surging difficult to start after fuel filter replacement