Difficulty
Moderate
Steps
7
Time Required
02:00:00
Ce tutoriel a été créé par la communauté
User contributed
Introduction
We will see how to perform the manual gearbox oil change on a Golf VI. In this tutorial, it is a 5-speed 0A4 type gearbox.
Recommended amount of oil:
- 1.7 L for maintenance draining (this is the case for this tutorial)
- 1.9L for complete draining (case of complete disassembly of the box)
Contact your dealer for more detailed information.
== Why do your gearbox oil change? ==
Most car manufacturers stipulate in the vehicle's maintenance booklet that manual transmissions are "maintenance-free" and that the lubricant is for life.
In fact, unlike engine oil which becomes loaded with dirty particles, gearbox oil is not subject to the same stresses and changing this element is therefore not recommended.
However, every new car has a running-in period, this is of course the case for the gearbox. This period can generate some filings which are normal. It is therefore interesting to be able to remove them after a few thousand kilometers.
This will also be an opportunity to give your gearbox a facelift and to resolve, sometimes, gear change problems or creaking gearboxes. Indeed, like all other oils, gearbox oil loses its effectiveness over time due to its degradation and wear.
Parts
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Open the engine hood and remove the battery cover (if the vehicle is equipped with one) and the upper engine cover.
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Disconnect the - terminal of the battery to work safely (in fact, it is necessary to disconnect certain engine sensors).
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It is necessary to disassemble the air box assembly completely to access the reverse light switch (on top of the box). This is where the air fill oil must be done.
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Disconnect the mass air flow sensor plug.
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Loosen and shift the clamp on the air intake. You can use a self-locking collar plierst or failing that, multi-grip pliers.
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Remove the small hose on the side of the air filter.
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Unclip the hood at the nose of the car (there are 2 clips, do not force it, it comes off by itself).
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Pull the air box assembly upwards firmly, grasping it from below (there is enough space to fit your hands through).
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Proceed gently when extracting the air box: a pipe hangs underneath and the elbow connected to the cowling may be damaged (See next image for the strength of the complete assembly).
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With the help of a 22 flat key, unscrew the reversing light switch.
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It is not necessary to remove the plug from the contactor because it rotates on itself, which makes unscrewing easier.
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Place the reverse light switch to one side and protect the hole on the housing with a clean, lint-free cloth.
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Unscrew the 12 screws of the under-engine screen using 2 Torx keys (T25 and T30): 9 x T25 + 3 x T30.
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When all screws are removed, pull the screen straight back to remove it.
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The lower part of the gearbox is now accessible.
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Place the jerry can under the box at the level of the level control cap then unscrew the cap using a 17 mm 6-sided bit.
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A little oil will leak out of this hole. Do not plug it right away as it will help drain the box (air intake).
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Still using a 17 mm 6-sided bit, unscrew the drain plug from the box (plug identical to the level control plug).
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Unscrew the bearing pivot using a torx bit, approximately 20 cl of additional oil will drain through this hole. Replace the bearing pivot.
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There are two bearing pivots (right and left of the VW logo on the box). Do not unscrew both of them! One is enough.
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Replace the bearing pivot and tighten moderately.
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Replace the oil level check plug. Using the torque wrench, tighten to 25 Nm
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Clean the underside of the box using cleaner (WD40 or brake cleaner) and remove the oil recovery can. Do not replace the engine screen at this time.
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Place the filler pipe topped with the funnel into the upper hole in the box (hole where the reverse light switch was located).
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Proceed to fill the box according to the manufacturer's recommendations (quantity ofoiland recommended viscosity).
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Due to the small diameter of the hose, the filling operation may take a long time. Fill in small doses to avoid the risk of the liquid overflowing from the funnel.
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Once the recommended amount of oil has been added, remove the hose and funnel assembly. Clean the hole and replace the reverse light switch. Tighten the switch securely.
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Check for leaks then replace the screen under the engine.
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Reinstall the air filter housing in the reverse order of disassembly.
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Replace the collar on the air intake.
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Reinstall the mass air flow sensor plug.
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Replace the - terminal of the battery and its protection (if the vehicle is equipped with one).
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Replace the upper engine cover.
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13 Comments
SO...
Nice tutorial and sufficiently illustrated.
For my part, not having a 17 mm hex key, I had to fake it. For those who are facing the same problem, take a 17 mm bolt, nut/lock nut and that will do the job 😉
Come on, Kénavo, have a good trip!
Good evening team, I have noise from the gearbox when I go over 80 km/h knowing that I have a 5-speed manual gearbox for a 2015 Caddy (1.6 tdi) driven 230,000 km, example: when I drive at 80 km/h with 5th gear I listened carefully to the noise it's like a frank friction, then when I buy it lever it in neutral on the same speed the noise disappears completely, a mechanic told me it might be the gearbox oil!!!
help me with your experience
Salutations
Well, finally a clear, clean and precise tutorial. No useless blah blah blah.
It is just recommended to block the box with the rocker made for this, to avoid any shift when removing the sensor.
In any case, it's a good tutorial overall.
Hello, I don't understand how the box can overflow more by filling with a syringe intended for filling boxes rather than with a hose according to the tutorial?
