A British soldier discovered a bomb planted beneath his car Monday, and the explosive was safely defused, officials said.
The bomb was similar to ones used by the Irish Republican Army, police said.
It was at least the third attempted bombing at a British military post in northern Germany this summer. One British soldier was killed last month in a car bomb that the IRA claimed responsibility for.
The bomb was set to go off if the car was moved, said Hans-Juergen Foerster of the West German Federal Prosecutors' Office in Karlsruhe.
Police said the soldier found the bomb while searching beneath his car, as British troops are instructed to do because of the possibility of IRA attacks.
West German explosives specialists disarmed the bomb, police said.