Workshop News

BMW 135i N54 inlet-valve walnut blasting.

Llandow Tuning Team 1 min read

BMW 135i N54 inlet-valve walnut blasting.

We removed carbon from the inlet valves. Deposits can affect airflow and running, but cleaning does not prevent them returning; we have seen accumulation again within a year.

Breather-system condition should also be considered when investigating repeated deposits.

BMW