In the event you are alert of irregular symptoms on your vehicle, you are right to be intrigued, because a car represents a big annual budget and unpredicted breakdowns don’t lower the expenses. So what if you sense that you have a leaking injector on your BMW X1? You probably figured it out thanks to black/oily drips along your engine, or a disturbed idle, or strange black smoke. These three symptoms are the main signals of a leaking injector. As this failure can cause more critical engine concerns on your car, we chose to prepare this article content to help you confirm the failure of a leaking injector and handle it correctly. To accomplish this, we will first of all take a look at the circumstance of gasoline injectors and then at those of diesel injectors BMW X1.
Leaking injector on my petrol BMW X1
It is important to know that the injectors on petrol and diesel engines are different, the reality is, the difference in combustion between these two types of engines makes the injection different. The key 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 BMW X1: The different leaks
It should be said that injector leaks on a BMW X1 equipped with a petrol engine are rather infrequent. This is resulting from the much lower pressure in the petrol intake systems. However, there are two types of leaks:
- Leakage from the top of the injector:
It is possible that you have a leak from the top of the injector, this is the part 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 suffer 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 sooner.
Leaking injector on my diesel BMW X1
Unlike petrol engines, which have spark combustion, diesel engines run on compression. This combustion system generates 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 BMW X1: The different leaks
In the circumstance of leaking diesel injectors on your BMW X1, there are three different types of leaks:
- Leakage from the injector inlet:
In this instance, it is an inlet pipe that will deform after a while, commonly the leak will be at the clamping point. - Injector return leakage:
As its name implies, this leakage relates to the management of the fuel return in the injector, this time the injector that leaks on your BMW X1 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 experience an air noise and a compression loss. - If after verifying you have oil leaking but it does not come from your injectors, we encourage you to consult this article content on the presence of oil leaking on your BMW X1.
Leaking injector on my BMW X1, how to fix the leak
And to finish, we’re going to take a look at how to fix a leaking injector on your car. Very often a leak is associated, as we have seen previously, to a worn seal because of the pressures endured. But think that the pressure in the circuit is enormous, specifically on diesel engines. So you will have to take some measures:
- Lower the pressure before any work is completed…
- Covering 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 limited to changing the seals that have failed:
- Identify 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 respect with the manufacturer’s standards.
In all cases, these interventions are not automatically complicated, but if you have the tiniest doubt in the treatment of your injector that leaks on your BMW X1, we encourage you to get closer to your auto mechanic to avoid any bad handling that could significantly harm the condition of your BMW X1.
To discover more tips on the BMW X1, take a look at the BMW X1 category.
