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Tightening my Oil Plug Drain Plug

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26K views 15 replies 7 participants last post by  OmahaTDI  
#1 ·
I know factory torque spec is 22 ft/lbs for the oil drain plug and I have a large Sears brand torque wrench that goes as low as 20 ft/lbs but I'm afraid that the lowest setting may be inaccurate, not sure why, but I just don't want to overtighten it. During my oil change a couple of weeks ago, I started tightening the plug with the setting at 20 ft/lbs but did not tighten it until I heard the "click" because it felt pretty tight already, and I was hesitant to continue since I don't want to strip it.

This weekend, I noticed a small drip on the garage floor so I'm assuming it must not be "tight enough".

I don't want to strip it, but should I stop being a "weeney" & torque to 22 ft/lbs?

Have others used the larger torque wrenches set at 22 ft/lbs without any problems?

Thanks
 
#2 ·
I have a smaller torque wrench for doing those kinds of jobs, actually now that I think about it the large torque wrench bottoms out at 29 nM, and my small one tops out at 29 nM. Are you sure on the torque spec for that job? I could have sworn it was very low and in Nm not ft/lbs.

Your problem may be that your oil plug needs to be replaced. Doing it by the book, the plug is meant to be replaced each oil change to replace the washer. From the VW dealership you'll get the plug and washer as a single unit.
 
#3 ·
Janitz is "on the money"; the Bentley New Beetle Maintenance Manual calls for a new drain-plug and crushable washer with each oil-change service. The drain-plug torque setting is specified as 30nM/22-ft-lb... :D
 
#4 ·
I don't think we've ever used a torque wrench for our drain plugs...tighten by hand with a socket has proven to be enough for us with all of our cars. No leaks, no stripping of the bolt. We don't replace the bolt, but we do get a new crush washer.
 
#6 ·
I think Smileybug must have an older plug that is being reused. I asked at the parts desk when I picked up my plug last oil change, the original part had a separate washer but it's no longer current. The current part has the washer as you described as an integrated part.

Plug and washer from VW was only $3 CDN. I do my oil change at 8000km (5000miles), so I figure $3 is not very much, that's basically 3 times a year.
 
#7 ·
My '99 had a separate washer, our '01 Jetta and my '03 GTI do as well. Not sure when that change happened.
 
#8 ·
When i do my oil changes i just make sure that it's hand tight and maybe a little tap on the bottom of a wrench. I never had to use a use a torque wrench.

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#10 ·
I don't doubt that VW recommends replacing the plug each oil change. But, if that is necessary, then the aluminum threads of the pan must be damaged (galled to some degree) each time the plug is threaded in.

I can't imagine how the threads of the steel drain plug become damaged by the aluminum pan. I can see how they might become clogged with the galled aluminum from the pan.

Or, do gassers have a steel pan?
 
#11 ·
In my case, I think it must be more related to the crush washer's effectiveness after multiple oil changes than anything else. This is my first oil change since I got it 2 months ago with just under 50k miles on it.
My other 2 vehicles (Grand Cherokee & Mustang) do not have crush washers or washers at all, and I just hand-tighten them, but their pans are steel.
 
#12 ·
Yes, it's for the washer not the plug. VW put out the combined washer and plug so that their dealer techs wouldn't go and do oil changes and forget the washer.

Yes, they had to redesign the plug so that their dealer techs wouldn't screw up. Any questions about why many VW owners prefer to not go to the dealer?
 
#14 · (Edited)
I just picked up 5 drain plugs from my local dealership. I have a buddy that works in the Service dept. and gets all parts to me at his cost. He also said that you should just have to "snug them up" and then turn it another 1/8 or 1/4 turn. No need for a torque wrench.

5 drain plugs were less than $10 :)
 
#15 ·
I just picked up 5 drain plugs from my local dealership. I have a buddy that works in the Service dept. and gets all parts to me at his cost. He also said that you should just have to "snug them up" and then turn it another 1/8 or 1/4 tun. No need for a torque wrench.

5 drain plugs were less than $10 :)
I like using the torque wrench because it feels like I'm being a very exacting German engineer.

ZEE TORQUE MUST BE CORRECT!