Tracing Water Leaks Process
This article describes the process we follow to trace water (coolant) leaks in BMW and Mini Cooper vehicles. This deals with significant coolant loss and not the puddle you find under your car after running the air conditioner.
The process begins with a water pressure test which is between 1bar-2bar depending on the model type. We then commence with a thorough visual inspection to identify obvious leaks.
The visual inspection focuses on the most common components where water (coolant) leaks occur. These include the motor, turbochargers, radiator, interim heating systems, thermostat and water pumps. Other components are the automatic oil coolers for the gearbox and engine and the EGR (exhaust gas recycling) cooling systems for diesel motors.
Once a leak is identified, we replace the component which may be a hose, seal, o-ring or gasket. We bleed the system and re-apply the pressure test. Once all the leaks are fixed we add coolant.
It is important to realise that over time, o-rings, rubber pipes, gaskets and seals eventually degrade and become brittle. This is due to the vast temperature fluctuations.
Why is Engine Coolant So Important
Everyday we see cars coming in with coolant issues. Drivers seem to be in the habit of only topping up the water bottle when the engine light comes on. They also fail to ensure new engine coolant is regularly added to the water.
The approved engine coolant (anti-freeze) plays an important role in preventing the engine from overheating and freezing. It also works as a lubricant for all the o-rings, water pump & thermostat seals. Furthermore, it prevents corrosion.
Depending on the altitude water freezes at 0 degrees C and boils at 100 degrees C. Coolant (anti-freeze) extends both of those values thus protecting the engine during extreme temperatures.
Please take this seriously! This is one of those general car maintenance chores which is vitally important.
Please don’t hesitate to contact us for any water leaks coming from your engine.
Prompt action can end up saving you a lot of money!