General description The A1665000049 Coolant Expansion Tank Kettle is designed specifically for various Mercedes Benz models, including the W166 ML Class, GL Class, GLS Class W292, and GLE Class. This engine coolant reservoir is essential for maintaining optimal engine temperature and performance. Technical specifications Item Type: Engine Coolant Reservoir Part Number: A1665000049 Color: Black Material: ABS Package Contents: 1 x Engine Coolant Reservoir Allowed measurement error: +/- 1-3 cm Compatibility and accessories Compatible with Class 2012/07-2015/10 X166 63 4matic 5461 ccm, 410 KW, 558 PS Compatible with Class 2012/07-2015/10 X166 350 CDI/BlueTEC 4matic 2987 ccm, 190 KW, 258 PS Compatible with Class 2013/08-2015/10 X166 400 4matic 2996 ccm, 245 KW, 333 PS Compatible with 2015/04-2019/12 W166 250 D 2143 ccm, 150 KW, 204 PS Compatible with 2015/04-2019/12 W166 350D 4matic 2987 ccm, 190 KW, 258 PS Compatible with 2015/10-2019/12 W166 500 4matic 4663 ccm, 320 KW, 435 PS Compatible