Arriving with the major 1995 evolution, the BMW M3 Convertible E36 introduced the glorious 3.2-litre S50B32 naturally aspirated straight-six delivering 321 hp and an 8,000 rpm redline. Paired with a Getrag six-speed manual gearbox, it combined exhilarating open-air acoustics with genuine motorsport pedigree. Sustaining an E36 M3 convertible as a reliable classic demands dedicated BMW M3 maintenance, particularly around the cooling system and cylinder head components.
The centerpiece S50B32 features high-pressure dual VANOS variable valve timing, which requires close scrutiny for internal hydraulic seal degradation, solenoid solder fatigue, and micro-filter clogging. The cooling circuit is notoriously fragile on aging E36s; plastic radiator end tanks, thermostat housings, and brittle water pump impellers must be renewed preventatively to protect the long alloy cylinder head from fatal warping.