BARDAHL 160023 RADIATOR STOP LEAK 300 ML - Radiator Leak Sealer, stops cooling system leaks

Capacity: 300 ml

BARDAHL 160023 – RADIATOR STOP LEAK 300 ML

Bardahl Radiator Stop Leak is a leak-sealing additive for the cooling system. It is added to the coolant when the radiator level drops or the engine overheats because of a lack of coolant. It helps drivers seal small leaks and gives workshops a quick treatment for the cooling circuit.

What it is for

Bardahl recommends Radiator Stop Leak for these problems:

• Dropping coolant level in the radiator
• Overheating due to lack of coolant

According to Bardahl, the possible causes are leaks in the cooling system and deterioration of materials due to weathering.

Benefits

• ✅ Seals and prevents cracks in the engine block, joints, hoses and throughout the cooling system.
• ✅ Withstands high temperatures, pressure and vibration.
• ✅ Does not damage seals, including rubber ones, or aluminium cylinder heads.
• ✅ Compatible with all types of radiator and coolant.

Dosage and directions

One bottle treats up to 5 litres of coolant (Bardahl's guidance). Add the product to the coolant in the circuit and follow the instructions on the label. Only open the radiator or expansion tank cap with the engine cold: the hot circuit is under pressure.

Technical specifications

• Bardahl code: 160023
• Product: Radiator Stop Leak, radiator leak sealer
• Size: 300 ml bottle
• Dosage: treats up to 5 litres of coolant
• Engines: water-cooled petrol, diesel and LPG engines
• Compatibility: all types of radiator and coolant

Compatibility

Bardahl states the product is suitable for all water-cooled petrol, diesel and LPG engines, and compatible with all types of radiator and coolant. It does not damage rubber seals or aluminium cylinder heads.

When it is not enough: Radiator Stop Leak is for small leaks and cracks. It does not repair a split radiator, a burst hose, a water pump leaking from the shaft or a blown head gasket. If coolant gets into the oil, or there is thick white smoke from the exhaust, take the car to a workshop.

Pair it with

• Bardahl 142023 B2 Oil Treatment 300 ml, engine oil additive
• Bardahl 147023 Engine Tune-Up 355 ml, engine cleaner
• Bardahl 120018 Top Diesel+ 250 ml, diesel additive

Frequently asked questions

What is Bardahl Radiator Stop Leak for?
Bardahl Radiator Stop Leak seals and prevents small leaks and cracks in the cooling system: engine block, joints, hoses and radiator. Bardahl recommends it when the coolant level drops or the engine overheats due to lack of coolant.

How much coolant does one bottle treat?
According to Bardahl, one bottle treats up to 5 litres of coolant.

Is it compatible with my coolant?
Yes. Bardahl states the product is compatible with all types of radiator and coolant.

Can it damage aluminium radiators or rubber hoses?
According to Bardahl, no: the product does not damage seals, including rubber ones, or aluminium cylinder heads.

Is it suitable for LPG cars?
Yes. Bardahl recommends it for all water-cooled petrol, diesel and LPG engines.

Does it repair a blown head gasket?
No. It is designed for small leaks in the cooling system. A blown head gasket, a split radiator or a burst hose must be repaired by a workshop.

Does it work on air-cooled engines?
No. It works through the coolant, so it is only for water-cooled engines.

Why does the engine overheat when there is a leak?
When the coolant level drops, the circuit can no longer remove the engine's heat. That is why Bardahl lists overheating due to lack of coolant among the symptoms. Top up the coolant immediately and look for the cause of the leak.

Can I open the radiator with a hot engine to pour in the product?
No. The hot circuit is under pressure and the coolant can spray out boiling. Wait until the engine is cold before opening the cap.

Why buy from Autoricambi Tritella

Since 2007 we have supplied workshops and drivers through 4 stores in the province of Teramo, Italy (Giulianova, Mosciano Stazione, Roseto degli Abruzzi, Nereto). Genuine Bardahl products, fast shipping and technical support: if you are unsure which product suits your car, contact us before buying.