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Ford Transit AdBlue Problems: The Complete 2025 Fix Guide
If you own a Ford Transit or Transit Custom and you're dealing with AdBlue warning lights, limp mode, or that dreaded countdown message, you're not alone. Ford Transit AdBlue problems are among the most common issues we see at AdBlue Specialist, and in this complete 2025 guide, we'll explain exactly…
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Mercedes OM651 / OM654: P13DF Heater vs P20E8 Low Pressure
Mercedes OM651/OM654: P13DF Heater vs P20E8 Low Pressure If your Mercedes diesel shows P13DF or P20E8, the SCR system is warning that AdBlue heating or pump pressure isn’t working as expected. These codes often appear together and can quickly lead to “No Start in 500 miles.” Here’s how to tell…
VW Crafter / MAN TGE: After-Refill Countdown Still Active
VW Crafter & MAN TGE: After-Refill Countdown Still Active Topped up your AdBlue but the dashboard still says “No Start in 500 miles”? You’re not alone. VW Crafter and MAN TGE vans often hold this countdown even when the tank is full. Here’s why it happens, how to reset it…
When P207F Isn’t Bad Fluid – Over-Concentration Myths Busted
When P207F Isn’t Bad Fluid – Over-Concentration Myths Busted If your van or car shows a P207F AdBlue fault, the first advice you’ll usually hear is “drain and refill the tank.” But in many cases, the AdBlue itself isn’t the problem. Let’s look at what really triggers this code and…
SPN 4354 Explained — DEF Line Heater 1 for Van Workshops
SPN 4354 Explained: DEF Line Heater 1 for Van Workshops If you’ve scanned a van showing SPN 4354 FMI 5, 6, or 18, it means the system can’t heat AdBlue fast enough. Known as “DEF Line Heater 1 Fault,” this issue often causes cold-start dosing errors and countdown warnings. Here’s…
Land Rover & Range Rover: P2200/P2202 NOx Sensor Symptoms
Land Rover & Range Rover: P2200/P2202 NOx Sensor Symptoms If your Land Rover or Range Rover dashboard shows a P2200 or P2202 fault code, your SCR system has stopped reading emissions correctly. These codes relate to the NOx sensor — a key part of the AdBlue setup — and ignoring…
P207F vs P20EE: Quality Warning or SCR Efficiency Fault?
P207F vs P20EE: AdBlue Quality Warning or SCR Efficiency Fault? Quick Answer: P207F signals poor AdBlue quality or dosing issues; P20EE means the SCR system isn’t reducing NOx emissions efficiently—often due to sensor, injector, or catalyst problems. Both can trigger a countdown to engine lockout. Fix P207F first for best…
JLR Ingenium: P3041 Heated Pipe & “Incorrect DEF Quality”
JLR Ingenium: P3041 Heated Pipe & “Incorrect DEF Quality” If your Jaguar or Land Rover displays a P3041 fault or the warning “Incorrect DEF Quality,” don’t rush to replace the AdBlue. This code often points to an electrical or sensor fault inside the heated delivery pipe, not the fluid itself.…
VW Crafter & Transporter: P207F/P204F Countdown Won’t Clear
VW Crafter and Transporter (T6/T6.1) owners often see P207F (AdBlue quality/performance) or P204F (SCR efficiency) with a stubborn “No start in XXX miles” countdown. You top up the tank, drive a while… and the warning stays. This guide explains why the countdown won’t clear, the checks you can do on…
Ford P20BA Heater Fault: Winter NOx Dosing Test & Repair
P20BA on a Ford Transit or Transit Custom points to the AdBlue (DEF) heater circuit “A”. In cold weather the SCR system won’t dose until the fluid is warm enough, so a dead heater, broken wiring, or a lazy relay can block dosing and set P20BA. Leave it and you’ll…