Mobile Truck Service in Rastatt

A Mercedes-Benz Actros 1848 refrigerated trailer unit was passing through Rastatt when the coolant low warning sounded on a summer afternoon. The driver noticed steam rising from under the bonnet at a set of traffic lights near the Baden-Baden motorway slip. He pulled onto an industrial estate entrance and called LKWHelp24 at 13:40. The mobile mechanic reached the truck by 14:30. After letting the engine cool, the technician found a failed coolant expansion tank cap allowing pressure to escape combined with a pinhole weep in one of the heater circuit hoses. Both were addressed on-site: the cap was replaced with a correct-pressure unit and the hose sealed with a sleeve clamp and a short repair section. The system was refilled, purged, and pressure-tested at running temperature. No further leaks appeared and the driver resumed toward Ettlingen and Karlsruhe at 15:50. Rastatt is a logistics and manufacturing town in Baden-Wurttemberg with significant automotive freight moving through it toward the Rhine crossings. A coolant failure in summer heat can escalate fast, so catching it early and fixing it in place was the right call.