There are several signs of a bad turbo, including: Reduction in power Hearing strange noise like engine whining Discolored fumes coming out from the exhaust Check engine light illuminating High fuel consumption Replace your worn out turbocharger with this brand new unit. Includes actuator. Part also fits* M CLASS 2005 – 2012 DIESEL, 3.0, 642.940 CODE, W164, 09/05-12/11 R CLASS 2006 – 2012 DIESEL, 3.0, 642.950 CODE, W251, 04/06-03/12 GL CLASS 2006 – 2012 DIESEL, 3.0, 642.940 CODE, X164, 10/06-11/12 *This is a guide only. If you are unsure if this part is suitable for your vehicle, please contact us and we can confirm prior to your purchase.
