Excessive carbon deposits could build up in the intake system of the engine. Additionally, the intake valve could leak. Consequently, the temperature of the intake air could rise, causing the engine intake manifold to melt and deform. This could lead to the engine to stop increasing the risk of accidents or even the engine bay to catch fire.
The Volvo V40 models affected by this recall were equipped with four-cylinder diesel engine D4204T8 (engine code 74) and manufactured between 2012 – 2019.
Volvo Recall code: 29946
Source: Rapex Alert 43/2019 A12/1597/19
Update 13. 12. 2019:
Recall extended to engines D4204T11 (A4), D4204T6 (A7) and D4204T23 (68) with 2016 – 2019 Model years vehicles.
Volvo recall code: 29945
Source: Rapex Alert 50/2019 A12/1953/19
Update 20. 12. 2019:
Recall extended to engines D4204T14 (A8), D4204T5 (73) a D4204T4 (AR) with 2014 – 2017 Model years vehicles.
Volvo recall code: 29947
Source: Rapex Alert 51/2019 A12/00032/19
Additionally, the intake valve could leak with the engines D4204T5 (73) D4204T4 (AR) and D4204T14 (A8).
Volvo recall code: 29948
Source: Rapex Alert 51/2019 A12/00028/19