1976 Mercedes-Benz 230.6 Oil and filter

Step 1

Repair step

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iF

PART USED ON THIS STEP Mercedes Oil Filter Referenced by the iFixit guide

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• We'll be working on my old Mercedes today, changing the Oil and Filter
• Pop the bonnet, or in USA "pop the hood", in RHD cars, the catch is on the left side next to the door
• It's two-hands to open the actual bonnet as there are 2 ajar catches on this model - one on either side near the sides of the front of the bonnet/hood

Step 2

Jacking points

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• I put my hydraulic jack in the centre of the front of the sub-frame
• I put the jack stands under the frame/unibody box sections
• I use cardboard instead of a creeper - more leverage, and easy clean up

Step 3

Removing the drain bolt

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• I used a 14mm hex or "Allen" key
• It appears some of the previous oil-changers over the last 40 years did not have the correct tool as there are vise-grip marks on the bolt

Step 4

The drain video!

No step image supplied by iFixit.

• See the oil flow

Step 5

Remove old filter

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iF

PART USED ON THIS STEP Engine Oil Referenced by the iFixit guide

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• Check your new filter etc, I used Hengst E117H D07, but last time I used Mann H720X, both kits came with new o-rings and copper crush-washers
• The oil filter is a cartridge-in-housing type located on the left-side of the engine block
• I only had room for a wrench/spanner and had to work it a bit before loosening it with my fingers

Step 6

Drain filter housing and old filter

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TOOL USED ON THIS STEP Small pick Referenced by the iFixit guide

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• Before removing the oil filter housing fully, move your catch pan under the area to catch the mess
• Clean around the housing mounting plate area with a clean-ish rag, I use 2 grades of rag, the super-oily one first to pick up the bulk of the oil, then a cleaner rag after
• I used a small pick to pull out the old o-ring - also check you don't misplace the washer on the long bolt

Step 7

Clean out the housing and install new filter

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• Clean out the filter housing with your rags etc, then install a new o-ring if your kit came with one
• Oil the new o-ring for re-installation
• Place the new filter cartridge in the housing and insert the bolt with washer on it
• Hold the bolt in and thread your hand down next to the block, lucky these old cars have heaps of space to work/see
• Tighten the bolt down, but don't over-tighten as it's only a cast-metal housing

Step 8

Ensure your drain bolt and filter are tight

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• Tighten your drain bolt and clean the area around the bolt with a rag
• Check the area for leaks after filling
• As you can see, my old filter was a Mann H720

Step 9

Lower the car

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• Lift the car up from that front sub-frame lifting area and remove your jack-stands
• Then gently lower the car so it's level for filling

Step 10

Fill the car

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iF

PART USED ON THIS STEP Engine Oil Referenced by the iFixit guide

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• I usually clean around the Oil fill cap with a rag
• The dip-stick on this engine is next to the spark-plug wires
• I used a stubby big-mouth funnel
• I used 20W-50 for this old car, it needed about 5.5L or so