On 16 April, the battle of Seelow Heights began as the Red Army attacked the German defensive lines on the Oder. The Kampfgruppe was sent with the 25th Panzergrenadier Division and the 111th StuG-Lehr Brigade to support the 606th Infantry Division near the town of Wriezen. The Germans were driven back, with the Kampfgruppe reduced to 18 functioning armoured vehicles and 50 men.