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I have just had my car serviced in an attempt to resolve a "no heat" heater problem. It seems to be a blocked core as the heater & radiator test ok otherwise.

The garage has managed to achieve some heat circulation using a radiator cleaner & flushing additive.

My question is; can I run the car safely for a few days using the radiator flush additive in the hope of continued improvement?

Stewart

From the "Ask Jack" archives - 8 July 2010

The fact the glass is non genuine and comes out of China is not a major issue. My sources tell me that a huge percentage of the global automobile glass comes out of China and they produce for both the new car and aftermarket industry.

Windscreens sold in NZ must meet an international standard, I suspect your screen would be no different. There should be a marking on the screen to identify the standard it has been manufactured to.

Like everything that is mass produced there is always the potential for quality issues and this may be the case with the screen that is fitted to your vehicle. My research would suggest the distortion may be coming from the glass raw material and while unusual, is not uncommon within the industry. What I have also learnt is glass distortion can be very hard to pickup and is often a problem for some drivers and passengers and not others.

I have not been able to find any industry tests that would confirm whether the screen has a fault or not.

I can’t blame the glass company Manager for not wanting to replace the screen but he should take up your offer of testing the car at night in an effort to confirm the problem or not.

I think it is a matter of going back and expressing your concerns again. Often it’s the squeaky wheel that gets oiled in these cases.

If you are facing a brick wall ask for a technical representative to get involved from their Head Office.

At the end of the day if a fault does exist the glass company should replace the screen. I'm sure they will be able to claim back on the supplier.