B Series - Change the gearbox/transfer case oil

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B series - Changing the gearbox/transfer case oil

Contents 1 Applies to 2 Required equipment 3 Difficulty Level 4 Estimated time to complete 5 Method 6 Submitted by 7 Forum Link(s)

Applies to

• All B series Fronteras

Required equipment

• 4.5 litres of Semi-Synthetic 15/40w Engine Oil
• Jack (Trolly or bottle)
• 2 Axle Stands
• Medium size socket set (something that holds 12 – 24mm sockets)
• Spanner Set (holds a 24mm spanner)
• Oil tray
• An old blanket (or something similar to lie on)
• A pump with approx 2 feet of tubing

Difficulty Level

• Easy

Estimated time to complete

• 1-2 hours

Method

• Using the Jack, raise the front wheels and suspend the vehicle on the Axle Stands.

• Going underneath from both sides, remove the rear-most chassis protector, this should be 6 bolts, which may be a little awkward to remove if they’ve never been removed over the life of your vehicle.

• You should now have a reasonable view of your gearbox and transfer case.

• Positioning the oil tray under the transfer case and using the socket set, remove the transfer case fill plug. Providing you can remove this then the fill plug, otherwise you could be left with an empty transfer case without the ability to fill it. The transfer case holds 1.45 litres of oil. Leave the plugs off for a few minutes to ensure the last drops of oil are out.

• Replace the drain plug and using your pump and 2ft of hose, add your new oil in through the fill hole until the oil freely flows out of the hole. Once it does you know you have enough oil in there, simply replace the fill plug and you're done.

• Now the awkward part, Vauxhall thought at the time when the Frontera was made that the gearbox oil need never be changed, so they didn’t bother adding a drain plug to the gearbox. Remove the gearbox fill plug (which is a bit awkward itself, you may find a 24mm spanner more useful here), and using your pump and 2 ft of hose (the length comes in handy now) insert the hose into the fill plug and start to withdraw the oil from there, this can take a while, and I used a couple of empty 2 litre plastic cola bottles to gauge how much oil I had withdrawn. Once you’re content you’ve withdrawn all the oil you can simply refill with your new oil until again the oil flows freely from the fill hole. Replace the plug.

• That’s it, wipe away the oil you’ve spilt so the immediate area is clean, replace the chassis protector, use the jack and recover your axle stands, and you’re finished.

Submitted by

• Unknown

Forum Link(s)

• None