- 7mm spark plug wires are an essential component of any vehicle's ignition system. These wires are responsible for delivering the high voltage current from the ignition coil to the spark plugs, which in turn ignite the air-fuel mixture in the combustion chamber. Without these wires, the engine would not be able to run smoothly or efficiently.
One important factor to consider when choosing spark plugs for your MK7 GTI is the heat range. The heat range of a spark plug refers to its ability to dissipate heat away from the tip of the spark plug. Choosing the right heat range for your MK7 GTI is important to ensure optimal performance and longevity of the spark plugs.
This is one of the frequent reasons for oil seal failure, and this is majorly because of the volatility of any of the elastomer’s constituents. These causative constituents may be part of the elastomer formulation, or gases that got entrapped in the elastomer during the molding process. The deceiving fact about this failure is that sometimes the oil seal won’t show any visual sign of out-gassing, however, sometimes when the out-gassing is extreme, they shrink.


Raise the front of the car on ramps, apply the handbrake and chock the rear wheels. Clean round the sump and the crankcase , clutch and gearbox. Drain the engine oil (See How to drain engine oil and remove filter ). Use an adequate jack to lift the engine.
HID (High Intensity Discharge)


4. Example of the applications of seals
These seals are designed to fit snugly around the shaft of the machine, preventing oil from leaking out while also keeping dirt, dust, and other contaminants from entering.