Cat code: 719120

Bars Leak Radiator Sealer 135ml

£4.99
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Simply add a dose of Bars Leak Radiator Sealer 135ml to your radiator coolant and the solution will seal any small leaks in your radiator system.

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Home/Work Delivery

FREE Delivery on all orders over £30 within 4 working days

£5.99 Next day delivery available if ordered by 3pm

Bars Leak Radiator Sealer Product description

Bars Leak Radiator Sealer is formulated to form a permanent internal and external seal in engine blocks and heads, radiator and heater cores, head gaskets, hose connections and core plugs.

features & benefits of Bars Leak Radiator Sealer

  • Stops radiator and cooling leaks
  • Conditions cooling system
  • Inhibits rust and corrosion
  • Lubricates water pump seal
Bars Leak Radiator Sealer 135ml 4.9 5 5 7
Does what ot says on the tin! Brilliant...bought it for a mystery leak before taking car to garage, and within a few hours i noticed the water level was steady. Well worth the price! 12 November 2011
Cost Saver Known about this product since I started driving. First time I've used it. Cured a mystery coolant loss that was baffling several mechanics. Worked perfectly! 19 September 2011
Does what it says on the tin! Cheap and simple solution to radiator leaks. As long as you follow the instuctions, the effects can be felt within 20 minutes 12 January 2011
Excellent Buy Does what it says, cured a small leak by the thermostat housing before a long trip. 24 June 2010
Bars Leaks Excellent, does exactly what it says on the tin. Have used it several times over the years. 22 May 2009
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6 Questions / 12 Answers

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1 year, 6 months ago
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Tina50
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Answer: 
yes you can, it is designed for use in all types of coling systems
6 months ago
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swhite87
blackwood, wales
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Top 500 Contributor
Top 500 Contributor
Answer: 
Yes. It mixes with anti-freeze too.
Age Group: 55 - 64
Gender: Male
Attitude to Car Maintenance: Expert
11 months ago
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old485
Gloucestershire
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Staff Answer
Answer: 
For specialist advice, please contact your local Halfords store.
1 year, 6 months ago
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HalfordsWebTeam
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3 years, 2 months ago
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spidypants
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Answer: 
The product is not primarily designed for this. Best get the hose changed.
Age Group: 55 - 64
Gender: Male
Attitude to Car Maintenance: Expert
11 months ago
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old485
Gloucestershire
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Answer: 
Bars Leak is formulated to form a permanant internal and external seal in engine blocks and heads, radiator and heater cores, head gaskets, hose connections and core plugs, should the leak be in a flexable pipe this would be more difficult to seal premanently, because of the hose flexing, if the leak is in a metal pipe Bars Leak should do the job.
3 years, 2 months ago
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HalfordsWebTeam
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I need to refill the radiator with water very frequently (every 2 or 3 days or after a couple drives). The heaters don't work in the car either, the temperature light is on but it still blows out cold air, i was told this problen is linked to the radiator. Will this product fix these problems?
3 years, 3 months ago
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Anonymous
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Answer: 
Will fix leak, but might be a problem with your heater/thermostat.
6 months ago
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Damon666
MIDLANDS
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Answer: 
Yes it should help with these problems especially the leak. It may not fix everything completely but it should help.
3 years, 3 months ago
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HalfordsWebTeam
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I have a leak in my heater somewhere the drivers side window becomes steamed up rather than demisted. I was told it could be a leak or it could be the heater matrix can i use this product for this purpose?
3 years, 7 months ago
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Anonymous
llanelli
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Top 500 Contributor
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Answer: 
Defintitely worth trying! Depending on the car, heater removal and replacement can be a real job.
Age Group: 55 - 64
Gender: Male
Attitude to Car Maintenance: Expert
11 months ago
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old485
Gloucestershire
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Answer: 
We recommend you speak to a qualified mechanic or your vehicle manufacturer to determine the fault.
3 years, 7 months ago
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HalfordsWebTeam
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3 years, 7 months ago
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Anonymous
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Answer: 
Follow instructions on the container
1 year, 8 months ago
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Alpha22
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Answer: 
Simply add a dose of Bars Leak Radiator Sealer 135ml to your radiator coolant and the solution will seal any small leaks in your radiator system.

All instructions are also included on the product.
3 years, 7 months ago
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HalfordsWebTeam
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Mainland UK Estimated Delivery Price
Reserve & Collect Reserve & Collect Reserve online and collect in-store in only an hour FREE
Standard Delivery Standard Delivery Free delivery on all orders over £30 within 4 working days £2.99
Next Day Delivery Next Day Delivery Order by 3pm for delivery tomorrow (Monday to Friday) £5.99
Named Day Delivery Named Day Delivery Choose your delivery Monday to Friday £5.99
Saturday Delivery Saturday Delivery Order by 3pm Friday for delivery on Saturday £9.99

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If the product you are looking at is in stock in your chosen store you can reserve it online and it will be ready to collect in only 1 hour. If it is not in stock, order the product before 3pm Monday to Friday and it will be ready to collect from 1pm the following day including Saturday. Orders placed on Saturday will be ready for collection after 1pm Monday. Orders placed Sunday will be ready for collection after 1pm Tuesday.

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We can deliver to your home, work or to an alternate delivery address.

Your order will be delivered by Royal Mail or by Courier depending on the size of the item. Some orders may require a signature on receipt.

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Returns
We hope you are happy with your purchase. If for any reason you are not, you are welcome to return your items free of charge to any Halfords store within 28 days of delivery.

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Bars Head Gasket & Exhaust Repairs

Bars Leak Radiator Sealer 135ml

£4.99 Simply add a dose of Bars Leak Radiator Sealer 135ml to your radiator coolant and the solution will seal any small leaks in your radiator system.