The M156 engine's alleged defects include defective camshaft adjusters and the engine's camshaft lobes made of iron are incompatible – through extended use – with the engine's valve lifters, which are made of harder steel.
Vagyis:
Perszövetség is volt az USA-ban miatta a Merci ellen.
Illetve korai példányoknál hengerfejcsavarok.
Ezen túl csak a szokásos.