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We have receive several complaints on the windscreen replacement for Toyota Vellfire on air tightness issue on the vehicle.

The complaint is regarding customer hearing wind noises after replacement of the front windscreen. Types of noise heard can be classified as below:

1. Wind Whistling Noise. A short sharp whistling sound is heard when travelling fast. It normally happened within a week after replacement. Under smoke testing, we found air leak into cabin from the sealant. The possible causes are sealant curing problem and driving without considering the precaution after replacement.
   Solution: Since 2015, We introduce fast curing OEM sealant and allow sealant to set before handover vehicle to customer. There is no complaint on the issue anymore.
2. Wind Noise From Side. Wind noise can be heard from side of the vehicle. It normally happened within a week after replacement. Under smoke testing, no air leakage found. There are many causes we discover over years. Causes not related to windscreen replacement include door visor, deterioration of door seals or etc. Causes related to windscreen replacement is due deterioration of side moulding. As the side moulding is required to be removed before replacement, the tighness can be affected due to deterioration.
   Solution: Replace new side moulding and clips or alternatively, seal the winds passage with sealant.
3. Wind Noise From top. Wind noise can be heard from roof of the vehicle. Complaints are received range from 1 weeks to 2 years after replacement of windscreen. Under smoke testing, no air leakage found. The noise can be worse for the model with sunroof. We have investigate and test on several vehicles, the causes are still unknown. We found the wind noice appear even before windscreen replacement. Suspect it is due to deterioration of certain parts of the vehicles, may not related to windscreen replacement.
   Solution: As the cause still unknonwn, there is no solution temporary. We are still in the mist of investigating the posible causes and solution.

All affected customer are encouraged to come to our workshop to have the problem solved without charges.

With effect from 01 August 2017, applying Sealant Enhancer will be deemed to be included for all windscreen replacement at Auto Windshields Sdn Bhd.

Since earlier of 2016, Sealant Enhancer has been introduced as an optional items for windscreen replacement at Auto Windshields Sdn Bhd. After nearly 2 years of experiments and practical application, we found that the enhancer help to reduce the impact of deterioration of primer and sealant. In short, it has improve the adhesiveness of the sealant and prolong the life-span of the sealant. Hence, we decided to include sealant enhancer to all windscreen replacement and trust it will benefits all of our customer.

If customer would like to exclude the Sealant Enhancer for their windscreen replacement, please inform our staff in advance and we will reduced the cost out accordingly.

We refer to complaints regard the wiper doesn't remove rain water effectively after replacement of original windscreen. After consolidate all similar complaints, we found that the affected windscreens are supplied by the same manufacturer.

We have coordinate with several car dealer and test on the new car, we found the same issue happened. Hence, we trust the issue is with original parts manufacturer and have lodge complaint to them on the issues.

While waiting feedback from the manufacturer, the problem can be solved by applying rain repellent or polish on the windscreen.

As a solution to our customer, a complimentary bottle Rain Repellent will be given to all affected customer. Please visit our workshop for more details.

We introduce scratch removal technology in early of 2014. As the technology not yet fully mature, the cost is high and the result is not convinsing.

Over the years, we have try to improve the result and reduce the cost but the progress is slow. Currently, we found this technology only effective on small and light scratches. Large area of scratches may not cost effective and deep scratches will result in distortion of glass. We trust it is due to the nature of glass and limitation of current technology. New innovative method may be required to break through the limitation we face today.

As a result, we will put our research on halt until more convinsing technology is announced.