In the event that you are alert of irregular signs on your car, you are right to be worried, because a car represents a huge annual budget and unforeseen malfunctions don’t reduce the costs. So what if you sense that you have a leaking injector on your Volkswagen Touran 2? You most likely figured it out thanks to black/oily drips along your engine, or a troubled idle, or unusual black smoke. These three symptoms are the main signs of a leaking injector. As this problem can end up in more significant engine trouble on your car, we thought we would produce this content page to help you confirm the failure of a leaking injector and handle it correctly. To do this, we will first of all look into the circumstance of gasoline injectors and then at those of diesel injectors Volkswagen Touran 2.

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Leaking injector on my petrol Volkswagen Touran 2

It is fundamental to know that the injectors on petrol and diesel engines are different, actually, the difference in combustion between these two sort of engines makes the injection different. The biggest difference lies in the pressure experienced by the injectors, on a petrol engine it will vary between 3.5 bars for indirect injection and 120 bars for indirect injection.

Leaking injector on a petrol Volkswagen Touran 2: The different leaks

It should be said that injector leaks on a Volkswagen Touran 2 equipped with a petrol engine are pretty rare. This is resulting from the much lower pressure in the petrol intake systems. Even so, there are two sort of leaks:

  • Leakage from the top of the injector:
    It is plausible that you have a leak from the top of the injector, this is the portion that is attached to the fuel rail, an O-ring will be involved in this.
  • Leak injector of the lower part:
    At last, you may experience a leak coming from the lower part of the injector of your car, this one will occur from the junction with the engine and not with the rail as seen before.

Leaking injector on my diesel Volkswagen Touran 2

Unlike petrol engines, which have spark combustion, diesel engines run on compression. This combustion procedure produces very high pressure in the engine, as do the injectors. On these models, the pressure is more than 10 times higher than on the direct injection of car petrol engines, reaching 1800 to 2000 bars.

Leaking injector on diesel Volkswagen Touran 2: The different leaks

In the circumstance of leaking diesel injectors on your Volkswagen Touran 2, there are three several sort of leaks:

  • Leakage from the injector inlet:
    In cases like this, it is an inlet pipe that will deform in the long run, commonly the leak will be at the clamping point.
  • Injector return leakage:
    As its name suggests, this leakage concerns the management of the fuel return in the injector, this time the injector that leaks on your Volkswagen Touran 2 will be the result of an O-ring or its plastic tip that leaks.
  • Injector base leak:
    This injection leak is one of the most troublesome, it is the junction between the engine and the injector nose that leaks at a copper seal, you should find an air noise and a compression loss.
  • If after examining you have oil leaking but it does not come from your injectors, we encourage you to read this content page on the existence of oil leaking on your Volkswagen Touran 2.

Leaking injector on my Volkswagen Touran 2, how to fix the leak

And to finish, we’re going to look into how to fix a leaking injector on your car. Frequently a leak is associated, as we have seen previously, to a worn seal as a result of the pressures suffered. But think that the pressure in the circuit is monumental, especially on diesel engines. So you will have to take some safety measures:

  • Lower the pressure before any work is achieved…
  • Masking you to avoid the risk of fuel spillage
  • NEVER work on a running diesel engine injector.

Relating to the repair part of your leak, it will frequently be restricted to changing the seals that have failed:

  • Find the source of the leak
  • Take apart the injector in question
  • Replace the corresponding seal kit
  • Reassemble the set up and tighten with a torque wrench in accordance with the manufacturer’s standards.

In all situations, these interventions are not specifically difficult, but if you have the slightest doubt in the treatment of your injector that leaks on your Volkswagen Touran 2, we encourage you to get closer to your repair shop to avoid any bad handling that could severely harm the condition of your Volkswagen Touran 2.

To find more tips on the Volkswagen Touran 2, take a look at the Volkswagen Touran 2 category.