Engelberg tunnel closed: drivers have to reschedule on the weekend!
Engelbergtunnel near Leonberg (Böblingen district) will be closed for maintenance work on September 21st, 2025 from 11:00 p.m. to 10:00 a.m.

Engelberg tunnel closed: drivers have to reschedule on the weekend!
The Engelberg Tunnel on Autobahn 81 will be the scene of maintenance work at the weekend. This Saturday evening, specifically from 11 p.m., the tunnel will be closed in both directions, as the federal Autobahn GmbH announced. The closure is scheduled to last until Sunday morning at 10 a.m., which will result in some diversions for drivers on the route from Karlsruhe towards Heilbronn. Some lanes will be affected as early as 9:30 p.m., so early travelers should exercise extra caution.
The diversions require a certain strategic plan: Motorists are redirected from the Leonberg-West junction. If you are traveling from Munich towards Heilbronn, use the Leonberg-Ost and Leonberg-West exits. Road users coming from Stuttgart must also be prepared for a diversion from the Stuttgart-Feuerbach junction to the Leonberg-West junction. Commuters who want to get on the motorway at the Leonberg-Ost junction must also use the diversion to the Leonberg-West junction - this can be crucial for safety and traffic flow.
Road safety in focus
The work on the Engelberg Tunnel is part of the regular maintenance measures that are essential for safe use of the motorway. As autobahn.de explains, both traffic technology and road infrastructure play a central role in traffic safety. Autobahn GmbH is responsible for ensuring that roads are properly maintained and updated to prevent accidents and manage traffic efficiently.
An important point in the safety strategy is well-trained road users. Traffic education and driver training are essential factors in getting through traffic safely. In addition, police surveillance is considered necessary to regulate traffic flow and ensure compliance with the rules.
Preparing for redirection
For anyone traveling at the weekend, it is advisable to get detailed information in advance and take the announced changes into account. Construction sites and closures, such as those found in Heilbronn, can cause additional delays. Drivers should prepare well to avoid unpleasant traffic jams.
It remains to be hoped that the measure will go smoothly and that drivers will be able to travel on the usual safe motorway again after the maintenance work is completed on Sunday morning. After all, the more important things in road traffic require not only good infrastructure, but also the responsibility of every individual on the road.