Holts Radweld Plus 250ml



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includes Accessories + Fitting

Item: 166770

Holts Radweld Plus 250ml


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  • Description
  • Reviews
  • Delivery Options
  • Buying Options
  • Holts Radweld Plus

    The Holts Radweld Plus is a permanent repair solution for leaks which is easy to use at home as an alternative to garage repairs. It works through your system quickly to seal leaks in; Radiators; Engine blocks; Cylinder heads; Hoses. Read the instructions before use.

    Holts Radweld Plus Extra Info

    • Easy to use, simply pour and go
    • Repairs leaks in minutes
    • No need to drain or flush the system
    • Safe, permanent repair
    • No clogging or damaging effects
    • Suitable for all cars
  • Holts Radweld Plus 250ml is rated 4.6 out of 5 by 70.
    Rated 5 out of 5 by from Highly recommended This stuff ia great!i had a leak in my coolant tank around the raidiator or something so the garage said, the coolant went down completely in arpund 4 weeks which i know its supposed to last ALOT longer than that. the garage said it would cost between 150-250 to get it fixed..which i was saving up to do. But whilst i was looking online at the problem etc i came across this and though no harm in trying although i was a little bit sceptical that something at that price couls fix a £150-£250 problem. BUT i done as it said on the bottle and fingers crossed over 200 miles later ( my son has football games away alot) and over a month the coolant has barelt moved and no more leaking! Im so happy i tried this firsg and save my self a few hundred.
    Date published: 2018-01-30
    Rated 1 out of 5 by from This product is bogus This product is bogus if used 2 bottles it doesn't work i own a bmw 320 d got a leak in the radiator i followed the instructions on the bottle 3 days later the radiator started to leak so purchased another bottle same again 3 days after radiator has starded to leak again I do not recommend this product
    Date published: 2017-12-28
    Rated 5 out of 5 by from Did what it was made to do. Was a smaller bottle than I thought it would be,but fixed the problem and I'm very happy with the result.
    Date published: 2017-11-29
    Rated 5 out of 5 by from Holts Radweld + The one that does a real repair not a bodge! Buy Holts Radweld+ It is well worth a couple of pounds extra to get this (Gold Bottle) over the standard product (blue bottle) or the foreign competitors, why because this actually is a repair rather than a temporary fix. I have used others in the past without much long term success so was not confident that this would work. The problem a heater matrix spraying hot steaming water all over drivers footwell in large amounts. Pretty dangerous to drive at all like this. Normal repair is to remove all of car dashboard and fit new heater matrix. Very difficult and time consuming = very expensive. So decided to try this. It worked and no more leaks at all. Nothing lost from cooling system after a month. Like all British products it does what it says it does. Just Great. This is safe to use, it does not clog up your engine, like some other heavy duty sealers.
    Date published: 2017-10-18
    Rated 5 out of 5 by from Fixed head gasket leak Great product, local garage quoted 550 and keeping car for a week! Not good if you need it everyday for work. My head gasket was not fully blown I think, detected early - was losing coolant at a rate of a full tank going in about a week in my 1.4L Vauxhall Corsa. Followed instructions on the bottle and no problems so far, have drove thousands miles since using.
    Date published: 2017-07-24
    Rated 5 out of 5 by from Head gasket repair I own a Vauxhall Omega estate. Radiator recently failed. Garage replaced radiator but when the radiator broke the head gasket failed. 2 bottles of radweld+ seem to have fixed problem. However long it lasts, it has saved on £500 of engine rebuild. 2 bottles needed but deffinately recommended however long it lasts.
    Date published: 2017-04-26
    Rated 5 out of 5 by from 1300km and no leaking Hi. After 1300km I noticed that there is no leaks. My coolant level is on the same location. Before it was dropped down from "max" to "low" after 600km when driving.
    Date published: 2017-04-03
    Rated 5 out of 5 by from Great Product I bought this for my granddaughter's car. She hasn't passed her test yet (18 years of age) but drives everywhere with my daughter (passed test) in the passenger seat. After the radiator had leaked a couple of times I decided to buy Radweld. My husband put it in the car's radiator and we kept our fingers crossed. Brilliant product, the radiator hasn't leaked since.
    Date published: 2017-01-27
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    • clientName_halfords
  • UK Delivery

    Standard Delivery

    £3.99 or FREE next day delivery on orders over £40 (Halfords products only)


    UK Delivery

    FREE Next Day Delivery on orders over £40

    Your delivery date will be communicated at checkout and on your confirmation email. Next day delivery not available on all products. Excludes bulky items.


  • You can buy this product from one of our carefully selected Approved Partners. The full list of options available are below. Simply add your chosen option to your basket and proceed to checkout when you're ready.

    You can purchase products supplied by Halfords and selected other suppliers on halfords.com.

    Checkout is always via halfords.com and all payment will be taken via halfords.com. In checkout the products will be split into separate deliveries for each supplier.

    Showing 1 - X of our buying options
    Price Seller Info Purchase

Some of the parts we sell here at Halfords have been reconditioned. These will carry a Refundable Deposit or an extra surcharge amount. When you add one of these reconditioned items to your basket, we'll add this extra cost automatically.

Once you've sent us your old item we'll check it over, and then refund you the full surcharge as long as everything is ok.

Before you return your old unit please make sure it's in re-serviceable condition. So if you're returning caliper casings, you'll need to double check they aren't badly damaged or broken. If the part you've sent is found to be unserviceable, we reserve the right not to refund the surcharge.

Please note that if you're returning your old unit to our National Returns Centre then this will be at your own expense.

Holts Head Gasket & Exhaust Repairs

Holts Radweld Plus 250ml

£7.99 Fix leaks in your car's radiator, engine blocks, cylinder heads or hoses with Radweld Plus.