SWSS BMW - Specialist BMW Garage Services in Cardiff

SWSS BMW

2 years ago

In the search for better fuel economy and engine performance, vehicle manufactures have been using Direct Fuel Injection for a number of years and BMW are no exception to this. Indeed BMW’s history in this field goes back in 2003 with the N73 V12 engine.
The process is controlled via a highly pressurised fuel system and directly injected straight into the combustion chamber as opposed to being injected into the Inlet Manifold thus resulting increased efficiency in both power and fuel savings.
In a combustion engine, Blow-By Gasses naturally occur because some of the gasses escape past the Piston Rings which causes pressurisation of the crankcase and as the engine ages the greater the effect.
To relieve this pressure the gasses are recycled via a breather into the inlet manifold which over a period of time causes carbonisation of the port and Inlet Valves themselves.
This build up effects the way the air enters the combustion chamber which causes hesitations, misfire like symptoms, poor performance and economy.
There are many ways to remove this carbon including Cylinder Head removal but this would be a costly procedure so alternatively more of a cost effective way is to carry out Walnut Shell Blasting.
Walnut Shells are injected directly under extreme pressure to the rear of the valves once the Inlet Manifold has been removed. This process removes the carbon but doesn't damage the Inlet Tract or Valves as the shells are softer than the engine components themselves.
With this procedure carried out and once adaptions have been reset, there is a notable difference to the way the engine performs with smooth acceleration and instant response.

Depending on which BMW or MINI the process takes approx 4-6 hours and prices vary between £199 - £299 inc of VAT.
For further details please contact us on 029 20 473040 or drop us a message. ... See MoreSee Less