[TunafishE93]

I am missing these two nuts circled in red for the undercarriage engine cover. Cars a 2012 335I E93 Auto. Does anyone know what size they are? Not sure if that is the right cover but its the main engine cover and nuts missing at end of cover right behind both wheels. Thanks.

Update: Correct size is M4x0.7

[Efthreeoh]

You were right there at realoem.com...

P/N 07147129160, Hex head screw with washer; ST4,8X16MM

It's Item No.8 in the schematic.

[TunafishE93]

Well thanks but that's a "screw".. I am asking about a nut...

[Efthreeoh]

Teaching you to fish...

See if you can figure out how to use realoem. You are looking for the C-clip nut (or speed-nut as they are sometimes called).

[TunafishE93]

Yeah thanks for nothing, don't think you know what your talking about. Its not listed on real, I got some nylon nuts that I will get on there.

[Welcome to NBA Jam]

Grab yourself this pack and you'll never want for speed clips again.

https://www.amazon.com/dp/B07Z1G2KSR..._YjrzEb5E5HK97

BMW uses 4.8x16mm. I'm sure the 4mm or 5mm will work.

[TunafishE93]

That has nothing I am asking for.. Do you see any nuts??

[TunafishE93]

Well its now a future me problem. This was the bolt/screw that was missing nut and nylon nut that will work for now...

[Welcome to NBA Jam]

Originally Posted by TunafishE93

That has nothing I am asking for.. Do you see any nuts??

Yes, there's 170 of them in this kit. They're called c-clip nuts.

[Welcome to NBA Jam]

Originally Posted by TunafishE93

Well its now a future me problem. This was the bolt/screw that was missing nut and nylon nut that will work for now...

The part you were pointing to is not the same as this picture. That was for the undercarriage of an xi. The nut that goes there is the same as on the bottom left of the fender liner.

[TunafishE93]

I give up.. Houston we lost all communication.

[TunafishE93]

Wrong again.. I did state that it might not be the right part as circled and described exactly what I needed. But thanks I am done with this and we have learned nothing. Great forum.

https://www.realoem.com/bmw/enUS/sho...diagId=51_5860

[Efthreeoh]

I'll try gain. So what type of car do you have? a 335i or a 335xi. The schematic you point to is the plastic under tray for the xi version of an E90. Based on that I'm assuming you are looking for the speed nut, which is indicated in the circle and is Item No. 17 like I showed before. If it is a stud coming off the floor pan then it probably uses one of the 10MM plastic nuts that are used in many places under the car to attach the flor panels. There are several P/Ns (Items 5, or 7):

[Efthreeoh]

Originally Posted by TunafishE93

Yeah thanks for nothing, don't think you know what your talking about. Its not listed on real, I got some nylon nuts that I will get on there.

Originally Posted by TunafishE93

Wrong again.. I did state that it might not be the right part as circled and described exactly what I needed. But thanks I am done with this and we have learned nothing. Great forum.

https://www.realoem.com/bmw/enUS/sho...diagId=51_5860

No, you have learned nothing because you've not asked a very clear question. Your pictures are way too fucking close and out of focus for anyone to figure out what part of the car your are referencing. There are three (3) types of fasteners that attach the various under panels to the bottom of the car: a 8MM-head screw P/N 07147129160; a plastic 10MM-head nut P/N 51161943122 or 51711958025, and a stamped sheet metal 10MM-head nut and big washer body called a "Body Nut" (a speed nut of sorts) P/N 07146949380

The main engine cover as you quoted it doesn't use any nuts to fasten it to the chassis on the E90 non x-drive version; it uses 16 each of the screws previously mentioned. The composite panels under the floor boards use a combination of the screws and plastic nuts previously mentioned, and the heatshields use a combination of the screws and body nuts previously mentioned.

I have a car lift and have removed every panel from underneath the car at various times; I've been under my car well over 300 times in 13 years and know the underside of it like the back of my hand. You're the one who doesn't know what he is talking about; you're just guessing and making it a pain in the ass to help you.

We are just trying to help, but you have to piss on people because you aren't sure what the hell you are asking for. What you circled is a c-clip nut, which is what the screw screws into in certain places on the under panels. If it is a stud on the floor pan, then it uses either the plastic nut or the body nut.

[TunafishE93]

You are wrong my car has those screws in the body attaching the engine cover right where I side they are. You can move on.

I still haven't learnt nothing and found that a nut can be a screw or a nut can be a c-clip nut and going on page two there is not an answer to my question. Thanks for all the wrong information I guess.

[Welcome to NBA Jam]

Originally Posted by TunafishE93

You are wrong my car has those screws in the body attaching the engine cover right where I side they are. You can move on.

I still haven't learnt nothing and found that a nut can be a screw or a nut can be a c-clip nut and going on page two there is not an answer to my question. Thanks for all the wrong information I guess.

Try asking a question more clearly next time and it will be easier for people to help you. Start by circling the correct part on your car and you'll get more accurate answers. Showing the wrong part for the car you stated in the original post isn't helpful.

All you had to do was center the last 7 of your VIN and RealOEM will show you the correct parts. If you did that the first time and maybe attached a picture like you did later, people can help you better.

Not only that, but if you removed your undercarriage cover, you literally removed those exact same nuts that are found elsewhere on the car holding the cover on (unless you're missing all of them, at which point, yes that's understandable).

Ask bad questions, get bad answers.

[e90yyc]

People are only trying to help you man...

As Efthreeoh said, those look like the 10mm plastic nuts. I’ve replaced a few before and based on your pics this is what you need.

[TunafishE93]

10mm is way to large to be the thread size.. It looks to be more like 3mm but the world my never know. And yes they been missing since I bought the car.

[tlow98]

Originally Posted by TunafishE93

10mm is way to large to be the thread size.. It looks to be more like 3mm but the world my never know. And yes they been missing since I bought the car.

10mm socket. We can all see it’s not a 10mm stud for a 5oz piece of plastic. Nothing about what you asked was clear from the beginning. And then you (finally) provided a pic and claimed your seat at the all-knowing throne.

The world will surely iron out the misgivings your parents left everyone to deal with.

[TunafishE93]

Yeah a 10mm socket really helps to find a replacement tread size lol. Good info guys.. I would be lost without you.

I guess it wasn't clear when I asked what nuts goes on the undercarriage engine cover that go right behind the tires. I just don't know how to be clear...

Btw these are the only two nuts that are on the engine cover, the rest are screws.. But I already found a replacement thanks to myself, I bow.

[TunafishE93]

If anyone comes along I used a standard 3/8 socket size nylon nut for replacement. See how helpful that is..

[6ixSpd]

Lol. Efthreeoh You can't help someone who can't help themselves.