AdBlue in the diesel tank: what now?
AdBlue has its own separate filler, but it's easy to confuse under pressure. If it's gone in the fuel tank, don't run the engine.
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Why it matters
AdBlue is a urea solution — it's corrosive to the fuel system and must never pass through the engine. Running it risks damage to the pump, injectors and lines.
The fix
The tank and fuel system are drained and flushed on-site, clean diesel is added, and the car is test-started. Quick if caught early — don't turn the key.
Need help now? Call 0800 170 0644 — Wrong Fuel In The Car drains wrong fuel on-site across the UK, 24/7, 365 days a year.
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Call 0800 170 0644 24/7, 365 days a year · across the UK