Vehicle models we fix
Model-specific AdBlue, SCR and NOx repair guides covering the UK's highest-volume diesel vans, pickups, SUVs and saloons. Each page lists the exact warning messages, fault codes, causes and fixes we see week in, week out.
Ford Transit
Van · Ford
AdBlue warning light, 'no engine start in X miles' countdown, repeat faults after a dealer reset, or limp mode under load — all classic Transit symptoms we fix every week.
Read Transit diagnosis & fix →
Mercedes Sprinter
Van · Mercedes-Benz
'Refill AdBlue — no engine start in 10 starts', limp mode, repeat faults after a Mercedes dealer fix, or pump whirring at key-on — all classic Sprinter symptoms.
Read Sprinter diagnosis & fix →
Mercedes Vito
Van · Mercedes-Benz
Vito drivers typically see an amber AdBlue warning, a 'no engine start in X starts' countdown soon after, and limp mode under load. We diagnose and fix the root cause in a single visit.
Read Vito diagnosis & fix →
Renault Master
Van · Renault
Master fleets typically log AdBlue warnings, lose dosing pressure and slip into countdown — costly downtime if it isn't fixed properly the first time.
Read Master diagnosis & fix →
Renault Trafic
Van · Renault
Trafic drivers commonly see an anti-pollution warning, AdBlue light and 'start-up not possible' countdown. Don't ignore the countdown — lockout follows.
Read Trafic diagnosis & fix →
Peugeot Boxer
Van · Peugeot
Boxer drivers typically see 'AdBlue: starting impossible in XX km' with very little warning. Once the count starts, every key-on matters — book in fast.
Read Boxer diagnosis & fix →
Peugeot Partner
Van · Peugeot
Partner drivers usually see a yellow AdBlue warning then a rapid countdown to 'starting impossible'. Fleet operators need this fixed fast to avoid downtime.
Read Partner diagnosis & fix →
Citroen Relay
Van · Citroen
Relay drivers typically see 'AdBlue: starting impossible in XX km' with little warning. Fleet operators need this fixed before lockout to avoid downtime.
Read Relay diagnosis & fix →
VW Crafter
Van · Volkswagen
Crafter drivers commonly see an amber AdBlue warning followed by a countdown. Repeat faults after a dealer sensor swap usually trace back to missing coding.
Read Crafter diagnosis & fix →
Vauxhall Movano
Van · Vauxhall
Movano fleets typically see anti-pollution + AdBlue warnings, dosing-pressure faults and countdown to no-start. Fleet operators need fast diagnosis to keep vehicles working.
Read Movano diagnosis & fix →
Ford Ranger
Pickup · Ford
'Service AdBlue System' or 'Engine starts limited' on the Ranger usually means the downstream NOx sensor or AdBlue injector has failed under tow / off-road duty cycles — not a simple top-up issue.
Read Ranger diagnosis & fix →
Ford Kuga
SUV · Ford
Kuga drivers typically get a warning, a panicked dealer visit, a clear-and-go, then the same warning a fortnight later — usually escalating into the countdown. We fix the underlying fault, not the dashboard symptom.
Read Kuga diagnosis & fix →
BMW X5
SUV · BMW
'Drive Moderately', 'Engine starts in 100' and amber AdBlue triangles on the X5 almost always trace to upstream/downstream NOx ageing on the B57 — and coding to the vehicle is non-negotiable.
Read X5 diagnosis & fix →
BMW 5 Series
Car · BMW
Fleet 520d / 530d cars typically present with an amber AdBlue warning that escalates into the restart countdown — and an ISTA-coded fix is required for it to last.
Read 5 Series diagnosis & fix →
BMW 3 Series
Car · BMW
A high-mile 320d will typically warn, get cleared, return — until the failed sensor is replaced AND coded to the vehicle.
Read 3 Series diagnosis & fix →
Audi Q7
SUV · Audi
Q7 MMI 'Refill AdBlue: No engine start in XXX miles' messages despite a full tank almost always indicate sensor or dosing failure — not a fluid level issue.
Read Q7 diagnosis & fix →
Audi A6
Car · Audi
A6 owners typically arrive after a clear-and-go from an indie garage; the warning returns within a fortnight. The fix is a coded OE sensor and full SCR adaptation reset.
Read A6 diagnosis & fix →
Audi A4
Car · Audi
A4 drivers typically see an MMI warning and a countdown; cold-weather faults additionally point to the AdBlue tank heater circuit. Both fix patterns are routine for us.
Read A4 diagnosis & fix →
Mercedes GLE
SUV · Mercedes-Benz
GLE owners typically present with a downstream NOx fault on OM642, or dosing module / heater faults on OM656 — and a Mercedes dealer quote north of £1,500 they're trying to avoid.
Read GLE diagnosis & fix →
Mercedes E-Class
Car · Mercedes-Benz
E-Class drivers typically arrive with a restart countdown after a clear-and-go elsewhere. We diagnose, replace the failed component with an OE coded part, and the warning is gone for good.
Read E-Class diagnosis & fix →
Mercedes C-Class
Car · Mercedes-Benz
C-Class drivers typically arrive with a restart countdown after the local indie 'cleared the light'. We diagnose, fit a coded OE sensor, and the warning is permanently gone.
Read C-Class diagnosis & fix →
Range Rover Evoque
SUV · Land Rover
Evoque drivers see the AdBlue triangle, get a countdown, get an estimate, and look for a specialist who can do it properly. That's us — same-day diagnosis, OE coded parts, lifetime warranty.
Read Evoque diagnosis & fix →
Range Rover Sport
SUV · Land Rover
Sport owners see 'Diesel Exhaust Fluid System Fault' or restart messages — the dealer quotes £1,500–£2,500 and we deliver the same OE-coded repair for a fraction.
Read Sport diagnosis & fix →
Land Rover Discovery
SUV · Land Rover
Discovery owners — particularly tow-frequent caravans / horseboxes — get the AdBlue triangle and countdown earlier than they expect. Proper diagnosis and a coded OE part fixes it permanently.
Read Discovery diagnosis & fix →
Range Rover Velar
SUV · Land Rover
Velar owners typically get the AdBlue triangle and a countdown; an OE coded sensor and SCR reset clears it for good.
Read Velar diagnosis & fix →
Peugeot 3008
SUV · Peugeot
3008 drivers typically arrive having ignored the early warning until 'risk of no engine start' appeared. We diagnose with DiagBox / Lexia, fit OE parts and clear it before lockout.
Read 3008 diagnosis & fix →
Peugeot 5008
SUV · Peugeot
5008 owners — full of kids and a packed boot — typically see 'risk of no engine start' just as the holiday road trip starts. We diagnose, fit and clear before the next school run.
Read 5008 diagnosis & fix →
Peugeot 308
Car · Peugeot
308 owners typically arrive with anti-pollution + AdBlue messages and a 'risk of no engine start' escalation. We fix the root cause, not just the dashboard symptom.
Read 308 diagnosis & fix →
Peugeot 508
Car · Peugeot
508 owners — often company drivers — see the warning, get a dealer quote they're not paying, and find us for an OE-coded fix at a fraction of the price.
Read 508 diagnosis & fix →
Citroen Berlingo (Passenger)
MPV · Citroen
Berlingo owners often arrive with 'anti-pollution faulty' + AdBlue light after a year or two of school-run duty. We fix the root cause with DiagBox.
Read Berlingo diagnosis & fix →
Citroen C4
Car · Citroen
C4 drivers see anti-pollution + AdBlue messages and a lockout warning. DiagBox diagnosis and an OE coded NOx sensor fix it permanently.
Read C4 diagnosis & fix →
Citroen C5 Aircross
SUV · Citroen
C5 Aircross drivers typically see anti-pollution + AdBlue warnings and a 'risk of no engine start' escalation. We diagnose with DiagBox and fit OE parts.
Read C5 Aircross diagnosis & fix →
VW Tiguan
SUV · Volkswagen
Tiguan owners typically see 'Refill AdBlue: no engine start in 900 miles' on the cluster and discover the local indie can't code the replacement. We do — ODIS coding included.
Read Tiguan diagnosis & fix →
VW Passat
Car · Volkswagen
Passat drivers see the countdown, get a clear-and-go elsewhere, and the warning returns — almost always because the sensor wasn't coded. We do the full ODIS work in one visit.
Read Passat diagnosis & fix →
VW Touareg
SUV · Volkswagen
Touareg owners typically see the AdBlue countdown after a tow-heavy summer, get a dealer quote north of £1,200, and find us for an OE-coded fix at a fraction.
Read Touareg diagnosis & fix →