Hi guys, got a question regarding the CDTI 1.9 engine.

Basically I work for Arnold Clark (though not a vauxhall branch, a fiat/citroen 1) and 1 of the Fiat mechanics reckons that the 120bhp 1.9 cdti used in the mk5 astra is an 8valve engine, while the 150bhp version is a 16v.

whereas I reckon that in the astra BOTH the 120bhp engine and the 150bhp engine are 16valve

pretty sure that in the Vectra the 120bhp version is an 8valve and the 150bhp is a 16valve, BUT NOT the astra as both its 1.9s are 16v

anyone care to give a definitive answer.

p.s. I've searched google and I can find BOTH 1.9 CDTI 8 valve 120bhp astras AND 1.9 CDTI 16valve 120 bhp astras.