You've possibly arrived at this link because you own one of the vehicles listed below and your 'Valeo type' heater has become blocked or is leaking.
This is a problem we've been hearing about with these heaters for a while now. Not only are the original heaters causing a problem but the alloy replacements being sold are failing in next to no time.
After several requests from desperate customers we have now added our own unit in copper and brass. We have wider water tubes which means they're not going to get blocked like the alloy units. Add that to the reliability and strength associated with copper and brass and you're on to a winner.
Vehicles affected by this are:
VW Golf 7, VW Passat, VW Sportvan, Seat Leon, Seat Ateca, Skoda Octavia, Skoda Superb, Skoda Kodiak, Audi A3, Audi Q2, Audi RS3, VW Tiguan, VW Touran, Mitsubishi L200, Subaru Impreza, Jeep Cherokee, BMW 1 series, BMW 3 Series, Dodge Nitro and many others
You can also see a visual explanation on youtube: