Mobile Truck Service in Heidelberg

A Volvo FH carrying chemical drums was approaching the Heidelberg loading zone from the Mannheim direction when the NOx dosing warning appeared and the engine began a slow derate. The driver, familiar with SCR system behaviour, switched on the hazard lights and guided the Volvo into a wide industrial access road near the Heidelberg South freight terminal before power dropped too far. He called LKWHelp24 at 10:55. Baden-Wuerttemberg traffic around Heidelberg and Mannheim was moderate at that hour, and the mobile mechanic arrived at 11:38. Diagnostics confirmed a fault in the AdBlue metering unit, where the dosing pump had developed an internal pressure drop, giving the ECU incorrect reagent readings. The mechanic replaced the metering unit from van stock, bled the AdBlue lines, re-initialised the SCR system, and cleared the fault log. The Volvo returned to full power through a short engine test cycle before the mechanic issued the job sheet. The driver was back on the road by 12:20, heading toward Speyer for the afternoon delivery. He noted that the quick fix had saved what would otherwise have been a two-day delay waiting for workshop availability near Ludwigshafen. Heidelberg sits on a key freight route between the Rhine ports and the broader Baden-Wuerttemberg road network.