Replacement of valve stem seals

Replacement of valve stem seals should be carried out according to the technology similar to the engine «M54» taking into account the fact that the old fixture «11.6.380» (deliveries until 2003) must be modified in accordance with the sketch - by drilling a hole with a diameter of 6.2 mm to a depth of A \u003d 45 mm (pic. 5.95).