#EngineVibration #FuelInjectorsClean #RoughIdling #IntakeManifold #IntakePlenum #160tkmService #BMWF20 #BMWN13

BMW N13 engine problems and repair:
1. Vibration! You need to check fuel injectors and clean them in case of necessity.
2. Rough idling! This problem is caused by idling valve and throttle flap: You only need to clean them in order to avoid such problem.

00:00 ENGINE VIBRATION FUEL INJECTORS cleaning 160 tkm SERVICE BMW F20 engine N13
00:35 Intake manifold Remove from the engine
06:18 Remove fuel pressure line and fuel rail with fuel injectors
09:48 Cleaning Fuel injectors and using service kit for injectors
17:58 Install fuel injectors and rail back to the engine
21:42 Intake plenum and throttle body Replace gaskets and install back to the engine
24:11 Install new Intake vanos solenoid valve
25:32 Intake plenum Install back to the engine

As in the previous episodes, I do a 160 tkm service for my BMW F20 car
Let's continue where we left off in the last episode!
The car currently consumes about one liter of oil per 1000 kilometers
It seems that the valve stem seals are worn and need to be replaced
In addition, one of the type defects of the N13 engine is the contamination of the tips of the fuel nozzles, which causes extra engine vibration
Vibration, you need to check fuel injectors and clean them in case of necessity
Rough idling, you only need to clean idling valve and throttle flap in order to avoid such problem
Let's clean the tips of the fuel injectors while changing the valve stem seals
The gasket at the bottom of the sound insulation of the upper part of the bulkhead must not be damaged
Remove the DME and its holder
Since I'm also replacing the valve stem rubbers, I make room for removing the valve cover at this point
Remove charge air duct
Remove intake manifold. Remember the hidden bolt (5 bolts in total)
Remove pressure line. Loosen the lower nut first. Fuel escapes when fuel lines are detached.
Unlock locks (1) and pull off cable channel (2) from rail
Detach rail from cylinder head and remove
Unlock and pull off connectors from injectors
Next, the fuel injectors are cleaned and new seals and holddown devices are replaced
Remove decoupling elements from injectors
Remove the fuel injectors from the rail
Remove the holddown device from the fuel injector
Remove sealing rings and support rings
Remove sealing rings, support rings, holddown devices and teflon sealing rings
Clean the nozzles of the fuel injectors so that the small holes are clean
In some of the nozzles, those holes were partially blocked
Install the new parts on the fuel injectors
Slide new Teflon sealing ring on the place with using the tip of the pen as a guide
Insert new holddown device
Put the fuel injectors back to fuel rail
Place the fuel rail back on the cylinder head
Make sure guide pin (3) of fuel injector is correctly positioned in designated hole in cylinder head (4)
Install pressure line
Next, intake plenum and throttle body
Remove the old intake Vanos solenoid valve and install a new one
I also changed the Vanos solenoid valve on the exhaust side without a camera
Set of sealing and fastening parts for fuel injectors
In the next episode, Valve stem seals will be replaced

Let’s continue with the next episode! Stay tuned!

Parts needed for fuel injector cleaning:
BOSCH Fuel Injector Sealing Set 4 x Part: 13647600869
Intake manifold gasket set 4 x Part: 11617528340
throttle body gasket 1 x Part: 11617528341

And new vanos solenoid valves 2 x Part: 11368610388



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Watch my previous videos on Youtube related to the maintenance and diagnose of BMW F20 with engine N13!
See the whole series from here:
   • BMW F20  Diagnosis and maintanence  


My purpose is to encourage people to do things themselves!
Plus, this is a nice hobby for myself and at the same time I have the opportunity to save a lot of money by doing all the maintenance myself!
I’m not a professional with cars or motorcycles, I just want to learn how to do things myself.
If you do this service yourself, always check the correct instructions in the official service manuals. This is just my way of doing it!

Jani Voutilainen

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