AUTOOL SDT205 Smoke Leak Detector for Vehicle Diagnostics & EVAP Leak Detection

AUTOOL SDT205 Car Smoke Leak Detector

The AUTOOL SDT205 is a professional leak detection tool for vehicles that quickly and accurately locates leaks in the pipe systems of cars and motorcycles. It is ideal for diagnosing intake and exhaust systems, seals, and fuel tank systems. With an integrated air pump and smoke generator, the SDT205 delivers results in just 30 seconds.

Leaks in vehicle lines are among the most common causes of performance problems, increased fuel consumption, or error messages in the engine control unit. The AUTOOL SDT205 enables rapid visual diagnosis by introducing dense smoke into the affected system. As soon as smoke emerges from a leak, the mechanic can pinpoint the source. This method significantly reduces diagnostic time and ensures precise repairs without unnecessary part replacement.

How smoke leak detection works

The AUTOOL SDT205 operates on a simple yet technically effective principle. A special test fluid is heated inside the device and converted into dense smoke. This smoke is then introduced into the vehicle system under test in a controlled manner using the integrated air pump.

Principle of pressure and smoke testing

The generated smoke spreads throughout the entire closed system. As soon as a leak is present, smoke escapes from the corresponding opening. This makes even the smallest leaks visible, which would otherwise be barely noticeable to the naked eye. This method is particularly helpful for fine cracks in hoses or poorly fitting seals.

Diagnosis without complex disassembly

A major advantage of the AUTOOL SDT205 is that many tests can be performed without extensive disassembly of components. This saves time in the workshop and reduces the risk of further damage to plastic joints or sensitive components.

Suitable vehicle systems for smoke tests

The application range of a smoke leak detector is versatile. Typical systems that can be checked with the AUTOOL SDT205 include:

• Intake systems and air ducts
• EVAP systems for fuel vapor control
• Vacuum lines
• Exhaust gas recirculation systems (EGR)
• Fuel tank systems
• Charge air systems in turbo engines

How is the leak test performed?

1. Pour 20ml of baby oil into the detector.
2. Open the hood and hang the detector on it.
3. Disconnect the pipe that needs to be checked and connect it to the detector.
4. Connect the detector to the DC12V battery and turn it on.
5. Within 30 seconds the pipe will be filled with smoke. Check for leaks.

Preparing the vehicle

Before the test, the system should be as closed as possible. Open lines must be sealed with rubber stoppers or adapters to retain the smoke pressure within the system. Careful preparation significantly increases the accuracy of the diagnosis.

Monitoring of leak points

While the smoke is being introduced into the system, all potential weak points should be closely monitored. Leaks are particularly common at hose connections, plastic manifolds, or porous rubber pipes. The escaping smoke is clearly visible and facilitates precise localization.

Typical diagnostic cases in the workshop

The AUTOOL SDT205 is frequently used in practice to identify difficult-to-find faults in modern vehicle systems. Many of these problems are difficult to detect using conventional diagnostic methods.

Leaky intake hoses

Faulty intake hoses can lead to inaccurate airflow measurements. The engine control unit then calculates incorrect injection values, which can result in rough engine running, loss of power, or increased fuel consumption. A smoke test immediately reveals whether unmetered air is entering the system.

Error in the EVAP system

The EVAP system prevents fuel vapors from escaping the tank. Even small leaks can trigger the check engine light. The AUTOOL SDT205 allows for quick testing of the system by introducing smoke into the lines.

Leaks in the turbocharger system

In turbocharged engines, a leak in the charge air system can lead to significant performance problems. Smoke tests allow for a quick inspection of charge air hoses, intercoolers, and connections.

Key features of the AUTOOL SDT205

• Wide range of applications: Suitable for cars, motorcycles, off-road vehicles, snowmobiles, ATVs, trucks and speedboats.
• Easy to use: Integrated air pump, no external device required. Works with the vehicle's 12V DC battery.
• Fast results: The smoke is generated within 30 seconds to quickly detect leaks.
• Advanced technology: Also works with the EVAP system (special accessories available).
• Safety features: Overheating protection at temperatures above 75°C, automatic shut-off.
• 3-year warranty: Durable and reliable for long-term use.

Integrated air pump

Thanks to its integrated pump, the AUTOOL SDT205 is independent of external pressure sources. This makes it particularly flexible for everyday workshop use, as no additional compressed air system is required.

Compact design

The device has a compact design and can be easily positioned in the engine compartment. Thanks to its robust construction, the leak detector is suitable for both professional workshops and ambitious hobby mechanics.

Security features

The built-in overheating protection ensures that the device automatically shuts off when a critical temperature is reached. This prevents damage to internal components.

Precautions

• Do not fill the detector with more than 20ml of oil.
• Use liquid paraffin or baby oil as the test liquid.
• Pour out the remaining oil before refilling and replace the oil regularly.
• Avoid proximity to smoke-sensitive parts during the test.
• The detector should not be operated for longer than 8 minutes at a time.
• The detector automatically shuts off if it overheats to prevent damage. Allow it to cool down before using it again.
• Be careful of the hot, round part of the detector to avoid burns.
• Secure the pipe ends with rubber stoppers if they need to be separated during the test.

Regular maintenance of the device

To ensure the AUTOOL SDT205 continues to operate reliably, the device should be checked regularly. This includes cleaning the connections and refilling the test fluid in a timely manner. A clean smoke generator ensures consistent smoke production and precise diagnostics.

Scope of delivery

• SDT205 device
• Standard cone adapter
• Smoke hose
• power cable terminal
• EVAP special connection
• Valve core wrench
• Universal airbag adapter
• Test oil refill bottle
• Rubber connecting parts
• 8 different hard rubber hose connectors
• manual

Meaning of the adapters included in the delivery

The various adapters allow connection to a wide range of hose diameters and pipe systems. This makes the AUTOOL SDT205 versatile and suitable for use with many vehicle types.

Efficient leak detection in everyday workshop use

The use of a smoke leak detector is one of the most effective methods of vehicle diagnostics today. The AUTOOL SDT205 combines ease of use with reliable smoke generation, thus enabling the rapid localization of leaks.

Especially with modern vehicles featuring complex air and emission systems, such a diagnostic device saves valuable working time. Instead of spending a lot of time searching for faults, the mechanic can directly visualize the problem and fix it precisely. This makes repairs more efficient, accurate, and economical.

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Free shipping within Germany for orders over €50.

Shipping costs within the EU are €14.99. For orders over €100, shipping within the entire EU is free.

The delivery time within Germany is usually 1–3 business days.

Worldwide shipping – to countries outside the EU – is also available. The applicable shipping costs are calculated and displayed during checkout depending on the destination country. For deliveries to countries outside the EU, additional customs duties, import taxes or other charges may apply, which are to be borne by the customer.