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Make sure that the engine is cold and the coolant in the cooling system is clean. Remove the radiator cap and fill the recommended amount of Steel Seal® directly into the radiator. Screw the cap tight again. Tip: For vehicles without a radiator cap, Steel Seal® can be filled via the expansion tank*.
Switch the heating and fan in the vehicle to the highest setting. Start the engine and bring it up to Full operating temperature. Run the motor 30 minutes left at full operating temperature continue idling. Switch off the engine and leave it Cool down completely (min. 6 hours).
Warning notice: Monitor the engine temperature via the display on the dashboard during the entire application. If there is a risk of overheating, switch off the engine immediately and allow it to cool down!
If necessary, add cooling water up to the specified mark in the cooling water tank. Leave Steel Seal® in the cooling system and use your vehicle as usual.
| ENGINE DISPLACEMENT | BOTTLES | |
|---|---|---|
| 1. | up to 2.4 liters (2,400cc) | 1 |
| 2. | 2.4 to 4.0 liters | 2 |
| 3. | over 4.0 liters (4,000cc) | 3 |
*Note: If Steel Seal® is filled via the expansion tank, the tank should be emptied beforehand. This ensures that Steel Seal® can enter the cooling circuit directly after filling and does not just remain in the container during use. Then continue with step -2-.
3 tips for optimum results with Steel Seal
A defective cylinder-head gasket is usually the result, not the cause, of an engine that regularly overheats. The cause of the overheating should therefore be identified and rectified before using Steel Seal® in the cooling system.
Important note: Steel Seal® is not compatible with all radiator antifreeze products!
We explicitly advise against itSteel Seal® with Antifreeze containing silicate to be used as "Long-term" or "Longlife" be designated. (e.g. not compatible with G12evo, Glysantin G65).
Instead, we recommend the use of Steel Seal® with pure water or silicate-free radiator antifreeze with a maximum antifreeze content of 25% or a mixing ratio of at least 3:1 (water to antifreeze) to be carried out.
If there are obvious impurities in the cooling water or other additives have previously been used, we recommend that the cooling system Rinse several times with clear water before use. If the application is carried out with pure water, Steel Seal® can easily be drained from the cooling system after successful application and the cooling system can be refilled with any commercially approved radiator antifreeze.
Additional operating instructions for overpressure in the cooling system
The following instructions should be observed if overpressure or Compression pressure in the cooling system builds up. This occurs when combustion gases from the combustion chamber enter the cooling system and is often recognizable by:
- Extremely hard, partially inflated cooling water hoses
- Strong back pressure when opening the expansion tank
- Formation of bubbles ("bubbling") in the cooling water when the engine is running
Method 1 (for high compression pressure when stationary)
position, which cylinder(s) is (are) the back pressure by removing one spark plug after the other until the bubbles stop forming. However, only ever start the engine with a maximum of one spark plug removed!
A.) You were able to identify the cylinder causing the overpressure in the cooling system? >>> Start the process at step 1 with the spark plug of the cylinder in question removed. If possible, also remove the injection line of the cylinder in question to prevent unused fuel from continuing to enter the combustion chamber. Do not forget to reinstall the spark plug and injection line after applying Steel Seal®.
B.) You could not identify the cylinder, there are two or more cylinders causing the overpressure in the cooling system or your engine has common rail injection (map-controlled injection)? >>> Go to method 2!
Method 2 (with slight overpressure when idling)
Make sure that the engine is cold. Then empty the expansion tank until the existing cooling water is just visible at the bottom of the expansion tank. Now fill the required amount of Steel Seal® into the expansion tank and let the Closure removed during the process. This means that no pressure can build up in the cooling system during application and Steel Seal® can enter the engine cooling circuit more easily. If possible, you can fill Steel Seal® directly into the radiator and leave the radiator cap open during the entire process.
Bonus tips after use:
- Drive your vehicle after the application and the complete cooling of the motor the next day for 30-40 minutes warm. Hold the Speed in the lower rangeby only accelerating a little and not "revving up" the engine. Then let the engine cool down completely again. Steel Seal® can have an additional effect and seal any remaining leaks.
- Steel Seal® is designed to first 2-3 trips after the application remain in the cooling system. Steel Seal can then be drained from the cooling system, but does not have to be. After the application can again each commercially available and approved by the manufacturer radiator antifreeze can be used. If the cooling system is to be filled again with an undiluted or highly concentrated Longlife coolant we recommend draining the remains of Steel Seal from the cooling system beforehand.
- Tip: Check the coolant level for coolant leaks after the first 100 km and the first few days after use.
Guarantee! If you are looking for 1 week (for daily use of your vehicle) always still symptoms (e.g. loss of cooling water) in an attenuated form, then get in touch with us! We will be happy to discuss whether a second application with Steel Seal makes sense and is advisable in your case. We will stay by your side until you are satisfied with the result.
Instructions for flushing the engine cooling system
If other additives or sealants have previously been used in the cooling system or the coolant is visibly contaminated, the cooling system must be rinsed with clear water before using Steel Seal® in order to achieve optimum results and avoid complications. Do not use detergents!
Rinsing - procedure:
- Park the vehicle in a suitable and secure location.
- Ensure that the engine is cold, the ignition is off and the handbrake is applied.
- Remove the radiator hose at the bottom of the radiator and allow the cooling water to drain completely from the cooling system. Note: Dispose of the old coolant only in an environmentally friendly manner and in accordance with all local, national and international regulations.
- Insert a suitable water hose into the upper opening of the radiator (if available). On vehicles without a radiator cap, the hose can also be inserted into the opening at the bottom of the expansion tank.
- Turn on the water at low pressure and flush the cooling system for a few minutes. Note: Never increase the water pressure during the flushing process.
- Once the flushing process is complete, reattach the lower radiator hose to the radiator and fill the cooling system with fresh coolant.
- The cooling system must then be bled as well as possible to ensure proper circulation of the coolant. And this is how it works:
- Loosen the bleed screw(s) with the engine switched off and cold (at different positions depending on the vehicle type)
- Fill the cooling system until liquid emerges from the vent screw opening, then retighten the vent screw(s).
- Open the radiator cap or expansion tank, set the heating in the vehicle to the highest level and the fan to the lowest level.
- Start the engine and allow it to rev up briefly a few times in the 3,000 to 4,000 rpm range when stationary.
- Then switch off the engine again and close the cap of the radiator or expansion tank.
For an optimal result
If there is any doubt about the condition of the cooling system and in the event of obvious contamination, we recommend flushing the cooling system with Steel Seal® before use.
Cleaning - procedure:
- Empty the cooling system and fill with the appropriate cleaning solution (see below).
- Set the heating controller to "warm" (so that the heat exchanger is also flushed if necessary).
- Start the engine and bring it up to operating temperature at medium speed.
- Allow the engine to run at operating temperature for a further 10 minutes.
- Switch off the engine and allow the coolant to cool down to approx. 50°C.
- Drain the cleaning solution completely
- Repeat the process until all residues have been removed, then rinse the cooling system with fresh water.
With a 10% cleaning solution consisting of water and citric acid. Mixing ratio: 100 g citric acid to 1 liter fresh water.
Concentrated radiator flushing:
If there are traces of engine oil, sludge or corrosion residues (brown-reddish) in the cooling system, for example because you have been driving with only water in the cooling system for a while, we recommend thoroughly cleaning the cooling system before use, e.g. with Concentrated radiator flush 325ml from PowerMaxed
