The SOHC 1.5 was enlarged to 1.6 L in August 1975 with unchanged power ratings and slightly higher torque ratings. In July 1978 the Passat Diesel became available, equipped with the VW Golf's 1.5 L Diesel, followed in February 1979 (at the AutoRAI) by the Passat GLI with a fuel-injected version of the 1.6 L engine.
