Skip to content 
We know this scenario from countless call-outs. As a mobile truck breakdown service and emergency diesel delivery service across Germany, it was immediately clear what gear had to come along: fuel, a hand priming pump, bleeding tools and the diagnostic kit to check everything once the engine was back alive.
08:30 dispatch, 09:10 on site – how our call-out went
At 08:30 our mobile service crew rolled out with the fully equipped workshop van. We made good time along the motorway to the vehicle’s location. By 09:10 we were on site, secured the area with warning lights and a triangle, and moved the driver behind the barrier first – safety always comes first on every roadside assistance job, in line with the safe stopping guidance published by ADAC.
Our steps on site:
- Refuel: We brought enough diesel and filled the tank to the point where the system could draw reliably.
- Bleed the fuel system: Using the hand pump and the bleed line, we pushed all the air out of the system – pre-filter, lines and the high-pressure side – until only bubble-free diesel came through.
- Start the engine: After bleeding, the inline six fired up cleanly, a little rough at first, then settling into a smooth idle.
- Function check: We let the engine warm up and checked feed pressure, tightness and the fault memory. Only once everything was in the green did we release the vehicle.
After the check, the MAN was able to continue its route safely. The driver – on the road for a foreign haulage company – was clearly relieved that everything went smoothly and without any language barrier.
Why running the tank dry is dangerous
Many underestimate what happens when a diesel truck is truly run to the last drop. The feed pump then draws air instead of fuel, and that air lodges in the filters, lines and injection system. The result: the engine stops and can no longer be started by simply adding fuel – the fuel system has to be bled. On modern common-rail systems this is a job for professionals, because sloppy handling can stress the high-pressure pump and injectors. That is exactly why a proper emergency fuel service is the safe choice.
What the job cost – transparent billing
We bill clearly and traceably. For this call-out – travel, fuel, bleeding the system, engine start and function check – the price was:
| Service | Details | Price |
|---|---|---|
| Mobile emergency diesel service | Travel, fuel, bleeding, engine start, function check | €490 net |
Compared with consequential damage from mishandling common-rail components, or a long, costly downtime, that is a fair fixed price for a fast, clean truck emergency service.
Expert tip: how to avoid running your tank dry
Our technicians give drivers and dispatchers two simple recommendations:
- With a low tank, avoid long climbs. On long uphill stretches the fuel can slosh away from the pickup and the system draws air – even though, on paper, there is still diesel left.
- Never run the tank completely empty. Refuel by the reserve mark at the latest. A dry-run tank almost always means an air-filled system – and a standstill that is easy to avoid.
Frequently asked questions (FAQ)
Isn’t it enough to just pour in more diesel?
No. If the system has drawn air, it must be bled first, otherwise the engine won’t start.
How fast can you be there?
We operate 24/7 across Germany. In this case we were on site 60 minutes after the call.
Do you help foreign drivers too?
Yes, easily and without a language barrier – a large share of our jobs are international transports.
Can an empty tank damage the engine?
Repeated dry running and improper starting with air in the system can stress the pump and injectors. That is why we work properly and to spec.
24/7 emergency line – we come and help
Whether it’s emergency diesel delivery, bleeding a fuel system, tyre service, towing or a mobile workshop – LKW Help 24 is there for you around the clock, on the motorway and across Germany. Broken down? Call us, we’ll come and get you back on the road.
📞 24/7 emergency line: +49 160 5753826
