Mercedes-Benz engines / models – Timing Belt or Chain?

Model	Generations
Mercedes-Benz A-Class	– A-Class (W177) 3th generation (2018-) – A-Class (W176) 3th generation (2012 – 2018) – A-Class (W169) 2th generation (2004 – 2012) – A-Class (W168) 1th generation (1997 – 2004)
Mercedes-Benz B-Class	– B-Class (W247) 3th generation (2018-) – B-Class (W246) 2th generation (2011 – 2018) – B-Class (T245) 1th generation (2005 – 2011)
Mercedes-Benz C-Class	– C-Class (W205) 4th generation (2014-) – C-Class (W204) 3th generation (2007 – 2015)
Mercedes-Benz CLA-Class	– CLA-Class (C118) 2th generation (2019-) – CLA-Class (C117) 1th generation (2013 – 2019)
Mercedes-Benz CLS-Class	– CLS-Class (C257) 3th generation (2018-) – CLS-Class (C218) 2th generation (2010 – 2018) – CLS-Class (C219) 1th generation (2004 – 2010)
Mercedes-Benz E-Class	– E-Class (W213) 5th generation (2016-) – E-Class (W212) 4th generation (2009 – 2016) – E-Class (W211) 3th generation (2003 – 2009) – E-Class (W210) 2th generation (1996 – 2003) – E-Class (W124) 1th generation (1984 – 1997)
Mercedes-Benz GL-Class	– GL / GLS X 166 (2012 – 2019) – GL X 164 (2006 – 2012)
Mercedes-Benz GLA-Class	– GLA X156 (2014-)
Mercedes-Benz GLB-Class	– GLB X247 (2019-)
Mercedes-Benz GLK-Class	– GLK X204 (2008 – 2015)
Mercedes-Benz GLC-Class	– GLC X253 (2015-)
Mercedes-Benz GLE-Class	– GLE V 167 (2018-) – W 166 (2011 – 2018)
Mercedes-Benz GLS-Class	– GLS X 167 (2019-) – GL / GLS X 166 (2012 – 2019)
Mercedes-Benz M-Class	– M W166 (2011 – 2018) – M W164 (2005 – 2011)
Mercedes-Benz SLC / SLK-Class	– SLK- & SLC-Class R 172 (2011-) 3th generation – SLK-Class R 171 (2004 – 2011) 2th generation – SLK-Class R 170 (1996 – 2004) 1th generation
Mercedes-Benz SL-Class	– SL-Class R 231 (2012-) – SL-Class R 230 (2001 – 2011) – SL-Class R 129 (1989 – 2002) – SL-Class R 107 (1971 – 1989) – SL-Class W 113 (1963 – 1971) – SL-Class W 121 (1954 – 1963)