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Würth CO2 Leakage Tester Set 2 Pieces in System Case 4.4.1

Würth CO2 Leakage Tester Set 2 Pieces in System Case 4.4.1

24 in stock

Key Features

  • Quick and easy CO2 measurement for detecting leaks between the combustion chamber and cooling system.
  • Compatible with all standard radiator plug-type necks and expansion tanks - no complex assembly required.
  • Reliable diagnostics within minutes without removing components.
  • Detects even micro-leaks and intermittent leaks that occur only under high pressure (>30 bar) or high temperature.
  • Ideal for routing maintenance, workshop diagnostics, and used-car inspections.
  • Safe and eco-friendly test liquid - acid-free, non-flammable, and easily disposed of.
  • Supplied as a 2-piece tester set in a durable system case for easy storage and transport.
£179.99 GBP
£179.99 GBP
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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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Product Product subtotal Quantity Price Product subtotal
Würth CO2 Leakage Tester Set 2 Pieces in System Case 4.4.1
Würth CO2 Leakage Tester Set 2 Pieces in System Case 4.4.1
Würth CO2 Leakage Tester Set 2 Pieces in System Case 4.4.1
£179.99/ea 		£0.00
£179.99/ea £0.00

Description

Effective Leak Detection

The Würth CO2 Leakage Tester Set enables technicians to quickly determine whether combustion gases are entering the cooling system. This provides an early warning of cylinder head gasket failures, cylinder head cracks, or engine block leaks, reducing the risk of severe engine damage.

Accurate and Versatile

Thanks to its universal fit on radiator necks and expansion tanks, the tester can be applied across a wide range of vehicles. Even leaks that appear only intermittently under high load or elevated temperatures can be detected. The device is an excellent supplement to a pressure test, which is typically limited to around 1 bar and may not reveal all faults.

Clear Visual Results

The included CO2 test liquid provides a distinct colour change from blue to green to yellow if combustion gases are detected. This ensures straightforward interpretation without specialist equipment. The liquid is acid-free, non-flammable, and environmentally sound, making it safe to use and dispose of after testing.

Workshop-Proven Solution

The tester is particularly valuable in customer service inspections, routine maintenance, and the used-car trade where rapid, reliable diagnostics can provide confidence in vehicle condition.

More Information

Application Instructions

  1. Warm the engine to operating temperature (for diesel engines, place under load by a test drive or rev repeatedly before testing).
  2. Insert the CO2 Leakage Tester into the cooler neck or expansion tank opening.
  3. Use the suction ball to draw gases from the cooling system air buffer through the test chamber.
  4. Observe the middle chamber of the tester. Blue liquid means no leak. Green to yellow, presence of combustion gases, indicating a possible head gasket or engine block issue.
  5. Dispose of the used test liquid after each test and replace with fresh liquid before the next use.

Usage Notes

  • Ensure no coolant is drawn into the tester during operation.
  • Always change test liquid after each use for accurate results.
  • For diesel engines, accurate results are achieved only when the engine is under load.

Specifications

Product: CO₂ Leakage Tester Set

Contents: 2-piece tester in system case 4.4.1

Compatibility: Standard radiator plug-type necks and expansion tanks

Indication Method: Colour change (Blue → Green → Yellow)

Test Liquid Properties: Acid-free, non-flammable, environmentally sound

Applications: Passenger cars, trucks, buses, routine maintenance, used-vehicle inspections

Storage: Supplied in a protective Würth system case

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