信息：Brands / Engines Known for Timing Chain Issues

• BMW

  • N20 and N26 4-cylinder turbo engines (timing chain guide failures).

  • N47 diesel engines (severe chain stretch, often requires engine-out repair).

• Audi / Volkswagen (VW Group)

  • 2.0 TSI / TFSI EA888 Gen 1 Gen 2 (20082012, stretched chains, bad tensioners).

  • 1.4 TSI early versions.

• General Motors (Chevrolet, Cadillac, GMC, Buick, Opel, Saab)

  • 2.4L Ecotec (20062012, chain wear common).

  • 3.6L HFV6 / High Feature V6 (20072012, chain stretch due to oil issues).

  • Cadillac SRX, CTS, Buick Enclave, GMC Acadia, Chevy Traverse affected.

• Mini (BMW-owned)

  • R56 Cooper S (1.6L turbo, death rattle chain/tensioner issues).

• Nissan / Infiniti

  • VQ35 and VQ37 engines (tensioner shoe wear, chain noise).

  • QR25DE (2.5L, some years prone to stretch).

  • Juke 1.6 turbo had premature chain wear.

• Ford / Lincoln

  • 3.5L 3.7L Cyclone V6 (EcoBoost and non-turbo) had timing chain stretch issues, especially with poor oil maintenance.

  • 1.0L EcoBoost 3-cyl (timing belt-in-oil, but some chain/tensioner complaints in others).

• Mercedes-Benz

  • M271 1.8L Kompressor and CGI engines (timing chain stretch, balance shaft gear wear).

• Hyundai / Kia

  • Less common, but some Theta II GDI engines (2.4L/2.0T) reported chain wear when oil change intervals were neglected.

为啥被拉长

• Long oil change intervals (chains rely heavily on proper lubrication).

• Low-quality oil or sludge buildup.

• Weak or defective chain tensioners.

• Poor chain material/design in some engines.

用好合成机油