Just Lost my engine shield

Thanks guys! Had not heard of riv nuts and now know what to look for and how to make "tool" o install them when this happens to me.

 

I took my 2010 Prius to my local Toyota dealer (not the dealer I bought the car from) after my oil change door fell off a couple of weeks ago. I have only had the car since July and only been in for service once. The dealer replaced my door for no charge even though my car is 1-month out of warranty and wrote it up as "good will one time" since they said they wanted me to keep coming back as a customer. So, you never know...!

MISC. ~|~CUSTOMER STATES COVER FROM UNDER VEHICLE CAME OFF SPLASH SHIELD , CHECK AND REPORT ~|~DUPLICTAED CUSTOMER CONCERN, FOUND DOOR FROM SPLASH SHIELD MISSING, GOOD WILL ONE TIME ONLY, AS PER SERVICE MANAGER ~|~REMOVED AND REPLACED SPLASH SHIELD, ALL OK OP CODE BD1104, T1-62 AND T2-12

PARTS​

NAME​

PART #​

QTY​

COVER ASSY, ENGINE U 5141012105 1
CLIP 9046709227 2
CLIP 9046707215 2
WARRANTY PAY

 

The oil change instruction in the Repair Manual says:

Regarding step 3, it's saying: don't just remove the flap fasteners and bend it down, remove the whole panel.

Steps 1 and 2 are totally unnecessary, but step 3 is not a bad idea. Problem is, the flap is apparently there for just that purpose, to give easy/quick access to the oil drain plug and filter. So everybody does just that, including service departments I'd surmise.

And the problem with that is the plastic spec for the undercover is not sufficient to allow flexing of that hinge. So repeated opening and bending back of that flap causes it to fail.

Maybe Toyota's revising the spec, I've read some report that the replacement covers are different, not exactly sure in what way.

For me, doing my own fluid changes, I just take the whole thing off, and have had no problems.

 

There are also things called Well Nuts that work great!

 

does anyone know it the Gen II Prii have an equivalent part? My cars missimg abunch of underbody panels. Although I have identified the one in the front and front/sides, the one in the center, which has the oil pan cover, remains a mystery. Scoured the interned and it's turned up nothing. I know that something is there but I don't know what it's called or what the part # is!

 

2007 Toyota Prius Parts - Camelback Toyota Parts - Genuine OEM Parts - Free Shipping

2007 Toyota Prius Parts - Camelback Toyota Parts - Genuine OEM Parts - Free Shipping

07 2007 Toyota Prius Lower Engine Cover - Body Sheet Metal - Action Crash, Left - Driver Side, Lower Center, Right - Passenger Side - PartsGeek

 

Thanks for your reply, Rude person's. I've definitely identified these parts as missing from my car, and will buy them and have my mechanic put them on; however, I believe there's one more piece, directly under the car, the thing the oil-pan cover/hatch is attached to. I also am thinking that it is the one which will attach to the backside of the bumper cover, the edge with bolt/clip holes that is not the edge which attaches to the bumper itself. I hope this makes sense.

 

The Gen III has NO oil pan cover and oil change door.

Do you have a Gen III Prius? Your profile shows that you have a 2007 Gen II.

 

I do have a Gen II; I'd like to know if there's an equivalent part for mine; there is obviously a large panel missing from the underside of my car, directly under the engine; can't figure out what it is. I think it's in addition to the parts referenced in the links posted above.

 

I had the same issue but only difference is I was out of warranty! So now I've been contacting Toyota but they do not feel they are at fault. The part is completely defective so why would I be responsible for the cost of replacement. If this is happening to other owners, Toyota advise that we contact them so if this is a common issue they will reimburse us for the repair. So please everyone take time to fill out the form and let them know we are not responsible for this DEFECTIVE splash guard. Toyota FAQs | Send Questions to Toyota Customer Service
Please click on the link and let our voices be heard!

 

If you can:

1. Somehow avoid that small flap getting bent back, stick to taking the WHOLE panel off.

2. Stay on top of broken or missing fasteners. (rinsing the grit out every time helps a lot)

The panel will last the life of the car. I agree though, this is a workaround, to make up for flimsy/brittle plastic specification: Toyota should fix this, has dropped the ball.

 

Do you know the bolt size for the engine cover panel? My used Prius came without an engine cover. I just bought one for $50 and I have new plastic fasteners. I just need the bolts before I install it.

I changed the oil and transaxle fluid. Will be sending the transaxle fluid out for analysis. Installed powerful magnet plugs for oil and transaxle. Just turned 50,000 miles.

 

It's an M6 I think, socket size 10 mm, by maybe 20 mm long. Might have a shoulder on it, I can take a look in a bit.

 

Has a captured lock washer and oversize washer. Toyota parts dept would be best bet, if you want exact one.

 

Thanks so much! I appreciate the help. The transaxle fluid looked pretty good for 50,000 miles. It was a dark reddish color. I hope to have the engine cover on within a week. I wonder if I will be able to see a mileage increase (I'm guessing not much, 1 mpg). Too small to read probably.

I like your idea of removing the whole cover for oil changes, and save the wear on the flap door. I'm planning on 10,000 mile oil changes (once every 6 months).

My best mileage commuting 35 miles home from work was 57 mpg. Got behind a very slow driver and just followed them.