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What is the purpose of the skid plate?

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Old 07-20-2011, 06:50 AM   #1
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Default What is the purpose of the skid plate?

My 2.7t does not have a skit plate.

and my 2.8's broke. Is the only purpose of this to protect the oil pan or does it also help with protecting parts from getting wet?

my 2.7 does not have it and the secondary air pump is making a jet like sound. maybe its because its gotten wet?
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Old 07-20-2011, 07:28 AM   #2
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its main purpose is to smooth airflow underneath the car giving you better gas milage...
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Old 07-20-2011, 07:29 AM   #3
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Uh...to skid over road obstructions?
OK, it's not a ski plate, it's a plastic belly pan and it's to protect the bottom of the engine compartment and control airflow. It minimizes splashes on the serp belt and keeps things cleaner. It also serves to catch things you drop when working on the engine..:<)

SAI Pump making jet sound is more likely because of an air leak.
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Old 07-20-2011, 07:54 AM   #4
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What skid plate? Not a factory item.
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Old 07-20-2011, 08:02 AM   #5
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LOL Ain't that the truth. Last time I had to remove the plastic belly pan it was to get a tool I dropped, which of course created much more work than the originally intended project.

As cited it's not a skid pad, which is typically rugged metallic and for mechanical protection on off-road vehicles.

Quote:
Originally Posted by SloopJohnB@mac.com View Post
Uh...to skid over road obstructions?
OK, it's not a ski plate, it's a plastic belly pan and it's to protect the bottom of the engine compartment and control airflow. It minimizes splashes on the serp belt and keeps things cleaner. It also serves to catch things you drop when working on the engine..:<)

SAI Pump making jet sound is more likely because of an air leak.
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Old 07-20-2011, 08:17 AM   #6
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bzzzzt - nope, sorry.

Since I've had my 2.7t since new, I was around when Audi retrofitted the "skid plate", which, as mentioned, is nothing of the kind, simply a plastic part that fills in the gap behind the bumper cover. Originally, '01 and before (maybe later models) had NOTHING to fill that gap. It was presented to current owners as a safety retrofit. It seems people would pull into parking spots with those pesky concrete logs, overrun the concrete and when trying to back off, would pull the entire bumper cover off. There was a growing PR issue with this because the repair was around $2000 if you messed it up good. I did it once and had to jack up the front end to get it to clear the concrete without damage.

Later, other VAG products were designed with them. That's when the oil change shops started refusing service to VW and Audi owners because their employees couldn't put it back on right and were shelling out many dollars for replacements

So, yes, the smooth underbody has been proven to aid fuel mileage and keeps things from splashing, BUT the real reason they first appeared on A6's was because of a liability issue.
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Old 07-20-2011, 08:22 AM   #7
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Quote:
Originally Posted by RMsALFA View Post
Audi retrofitted the "skid plate", which, as mentioned, is nothing of the kind, simply a plastic part that fills in the gap behind the bumper cover. Originally, '01 and before (maybe later models) had NOTHING to fill that gap.
LQ did not add any plastic thing to fill any gap. They simply installed brackets to lower the fastening point of the front of the plastic belly pan.

There is no skid plate.
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Old 07-20-2011, 05:12 PM   #8
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Where do you people get this wrong information? LOL.
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Old 07-21-2011, 12:26 AM   #9
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Quote:
Originally Posted by SloopJohnB@mac.com View Post
Where do you people get this wrong information? LOL.
probably the same place you get yours, the question is who gets it cheaper.

is only a sound deadening device, nothing else. it won't protect the engine at all in case of bottoming out or objects on the road, (ALLROAD uses one made of carbon fiber and metal for this purpose), which barely does the job anyway.
they been used for a long time since the Audi 80 in the late 80s.
as any other cover on top of the engine, serves no particular purpose other than covering things so things look better than they actually are.
Audi as most other companies have learn to use this things as they conceal oil leaks while under warranty avoiding costly repairs.
4d4 is right on the bumper/cover recall, it just makes it hang lower than the bumper preventing it from getting caught as the car moves backwards.
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Old 07-21-2011, 12:30 AM   #10
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Default jet

Quote:
Originally Posted by rohit13 View Post
My 2.7t does not have a skit plate.

and my 2.8's broke. Is the only purpose of this to protect the oil pan or does it also help with protecting parts from getting wet?

my 2.7 does not have it and the secondary air pump is making a jet like sound. maybe its because its gotten wet?
just FYI the air pump in the 2.7 seats up high in the engine close to the firewall.
would be very difficult for anything to splash up there with or with a cover plate at the bottom.
the jet noise means is coming to the end of its days.
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Old 07-25-2011, 07:29 PM   #11
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I live in HEAVY snow country in the Sierra Nevada mountains. Believe me, it can and will get torn off if your wife backs over a huge snow berm. I've patched mine about a dozen times. They ain't cheap to replace, but they are available. I prefer having it on to keep gunk and road debris off od the underside of the engine/tranny. Also keeps the squirrel roadkill residue off of the engine!
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Old 07-26-2011, 09:11 AM   #12
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aero - smooths airflow.
Also catches all the parts that fall off.
Its odes provide some small amount of protection from stuff below. not much though.

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Old 07-26-2011, 09:12 AM   #13
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Huh? My '00 had one. And my '95. And my '91.

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Old 07-26-2011, 09:13 AM   #14
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it is for aero management. Plain and simple.
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Old 07-28-2011, 10:00 PM   #15
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It also helps with downdraft on the track. I bought my 2.7t from my Uncle who used it as a driving instruction car as he teaches courses for the Porsche and Audi of America clubs. He explained that when the belly pan was removed at Laguna-Seca, the front end drifted and felt light at speeds over 100mph. He put it back on and the front end tracked and gripped much better, felt heavier and more solid, etc.

The car is lowered as well, so maybe the smaller distance between the pan and the road has an effect also.
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Old 07-29-2011, 04:16 AM   #16
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My car, my gf's car and my mom's car have all lost the belly pans. In the winter, when it snows and the roads aren't cleared too well, it's easy to rip one off - especially if someone else worked on the car and didn't put the pan on right.

While I don't think it provides much protection from impact, it may provide some protection from dirt and more importantly - water. I'm not real concerned about it, since I don't have any, but I do wonder if it makes the alternator more likely to get wet in certain situations, which I am not fond of.
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Old 07-29-2011, 05:28 AM   #17
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yep, that's aero management!
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Old 07-29-2011, 06:28 AM   #18
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Imagine you are working on something
with glove (belly pan)
without glove (no belly pan)
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Old 08-01-2011, 06:59 AM   #19
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Quote:
Originally Posted by Just Me View Post
it is for aero management. Plain and simple.
i believe that was what i said at the begining of the post as was ignored lol
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Old 08-03-2011, 02:09 PM   #20
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facts never trump opinions.
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Old 08-03-2011, 02:09 PM
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