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Würth A/C Leakage Stop Additive

Würth A/C Leakage Stop Additive

In stock

Key Features

  • Seals ageing O-rings in R134a air-conditioning systems, preventing refrigerant loss from slightly perished or brittle seals.
  • Contains Tri-cresyl-phosphate (TCP), a specialised additive that reduces mechanical wear and friction inside compressors, extending service life.
  • Noise reduction in compressors due to improved lubrication and smoother piston operation.
  • Compatible with PAG and ester oils, ensuring broad applicability across most R134a systems.
  • Designed for preventative maintenance, helping avoid costly future repairs.
DETAILED DESCRIPTION →
£19.99 GBP
£19.99 GBP
Sale Sold out
Taxes included. Shipping calculated at checkout.

Shipping Information

What Are My Shipping Options?

In-Store Pickup

In-Store pickup is available on all purchase. Pickups are available Monday - Friday between the hours of 9:00–17:00. 

An email confirmation will be sent when your order is ready for collection. 

Free Shipping

We offer free Standard (2-3 Days) shipping on orders within the United Kingdom on orders over £100. Please note, some large items that require specialist courier companies, such as large mirrors and palleted items are excluded from this deal.

Shipping Fees

We also offer shipping at the following rates:

Standard-Size Parcel

Standard (UK Only) - 2-3 Days - £2.99

Express (UK Only) - 1-2 Days - £4.99

International (EU) - 3-7 Days - £14.99

International (ROW) - 5-10+ Days -£23.99


Large Parcel

Standard (UK Only) - 2-3 Days - £2.99

Express (UK Only) - 1-2 Days - £4.99

International (EU) - 3-7 Days - £14.99

International (ROW) - 5-10+ Days - £69.99

Most UK orders will be sent using Royal Mail, with larger items being sent with DPD.

International orders within the EU will normally be dispatched with Royal Mail, DPD, or UPS.

International orders to the rest of the world will normally be sent with DPD or UPS.

Please note, international delivery charges are very volatile and subject to change. We will do everything in our power to honour the delivery fee, however, in some cases, shipping may increase in price. In this event, you will be given the offer to pay the difference or cancel the order and receive a full refund.

Please note, we may be subject to various rules and restrictions in relation to some international deliveries, and you may be subject to additional taxes and duties over which we have no control. If such cases apply, you are responsible for complying with the laws applicable to the country where you live and will be responsible for any such additional costs or taxes.

Dispatch Times

Orders placed before 15:00 Monday - Friday will be shipped on the same day. 

Orders placed after this time will be shipped on the following business day,

Please note, we are closed at weekends, as well as English Bank Holidays.

Returns Policy

Our refund policy can be found at the following address: https://esupplyline.com/policies/refund-policy.

Further Information

You can contact us for further information on our shipping policies using the following:

Phone: 01953 711 881

Email: sales@esupplyline.com

Live Chat: Available on our website, Monday - Friday, 8:30 - 17:00.

Contact Form: https://esupplyline.com/pages/contact

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Description

Penetrative Seal Protection

Würth A/C Leakage Stop Additive is formulated for R134a vehicle air-conditioning systems and specifically targets slightly perished and brittle O-rings. By restoring seal elasticity, it provides a preventative solution against refrigerant leakage. This makes it ideal for workshops or vehicle owners looking to maintain long-term A/C reliability.

Compressor Life Extension with TCP

The inclusion of Tri-cresyl-phosphate (TCP) ensures superior wear reduction inside the A/C compressor. TCP is a high-performance friction modifier designed for pistons and internal compressor components, reducing mechanical stress, extending the compressor’s lifespan, and cutting down noise from worn parts.

System Compatibility

The additive is fully compatible with PAG and ester oils, making it suitable for most R134a systems in cars, vans, and trucks. It is a preventive-only product and not intended for repairing leaks in metallic components such as compressors, condensers, or evaporators.

More Information

Application Instructions

  1. Ensure the engine is switched off before starting.
  2. Connect the A/C Leakage Stop Additive to the correct adapter.
  3. Insert the cartridge into an application gun.
  4. Inject the additive into the high-pressure side of the cooling circuit.
  5. Follow up with a system cycle as per vehicle manufacturer recommendations.

Important Safety Notes

  • Do not use to seal leaks in metallic A/C components (evaporator, condenser, compressor housing, etc.).
  • For professional use only. Always follow workshop safety guidelines and manufacturer specifications.

Specifications

Product type: Preventative A/C leak stop additive

Application medium: R134a vehicle A/C units

Target seals: Slightly perished or brittle O-rings

Additive: Tri-cresyl-phosphate (TCP) – reduces wear and friction in compressors

Compatibility: PAG and ester oils

Application method: Via high-pressure side with application gun (engine off)

Not suitable for: Sealing leaks in metal components (compressors, condensers, evaporators)