Your browser isn't supported
It looks like you're using an old web browser. To get the most out of the site and to ensure guides display correctly, we suggest upgrading your browser now. Download the latest:

Welcome to the MSE Forums

We're home to a fantastic community of MoneySavers but anyone can post. Please exercise caution & report spam, illegal, offensive or libellous posts/messages: click "report" or email forumteam@. Skimlinks & other affiliated links are turned on

Search
  • FIRST POST
    • john432
    • By john432 13th Jul 18, 10:17 PM
    • 124Posts
    • 4Thanks
    john432
    Engine under tray missing?
    • #1
    • 13th Jul 18, 10:17 PM
    Engine under tray missing? 13th Jul 18 at 10:17 PM
    Had car serviced a few weeks ago, and have just noticed the engine bottom cover / protection cover / under tray is missing. Will be taking this up with garage on Monday.
    So, views, as they have likely lost or misplaced the cover, is it worth getting a replacement?

    Car is a pug 308 hdi diesel.

    Thanks.
Page 1
    • AdrianC
    • By AdrianC 13th Jul 18, 10:42 PM
    • 17,778 Posts
    • 16,106 Thanks
    AdrianC
    • #2
    • 13th Jul 18, 10:42 PM
    • #2
    • 13th Jul 18, 10:42 PM
    They often disintegrate, or fixings break up or seize, and they simply won't go back on again. And that's assuming they took it off, and it didn't fall off while you were driving - you certainly can't prove either way. I doubt you want to know the cost of a new one.

    The purpose is mostly to meet drive-by noise regs. If you've not noticed it being louder, then it shows how much use they are.
    • john432
    • By john432 13th Jul 18, 11:07 PM
    • 124 Posts
    • 4 Thanks
    john432
    • #3
    • 13th Jul 18, 11:07 PM
    • #3
    • 13th Jul 18, 11:07 PM
    What about the fact it gives protection to the bottom of engine, ie sump etc?
    • AdrianC
    • By AdrianC 13th Jul 18, 11:14 PM
    • 17,778 Posts
    • 16,106 Thanks
    AdrianC
    • #4
    • 13th Jul 18, 11:14 PM
    • #4
    • 13th Jul 18, 11:14 PM
    What about the fact it gives protection to the bottom of engine, ie sump etc?
    Originally posted by john432
    It doesn't. They're really quite flimsy, usually made out of some pressed fibrous material. If you hit anything substantial enough to damage the steel sump, the undertray would offer zero protection.

    For many years, some versions of a car would come with, some without - often a straight diesel/petrol split, precisely because of the noise question. As drive-by noise regs have become stricter, they've become ubiquitous.

    Oh, yes - and at autobahn speeds, they might offer some fairly limited aerodynamic benefit, but not at UK motorway speeds - and certainly not in town.
    • fred246
    • By fred246 13th Jul 18, 11:35 PM
    • 1,032 Posts
    • 569 Thanks
    fred246
    • #5
    • 13th Jul 18, 11:35 PM
    • #5
    • 13th Jul 18, 11:35 PM
    Damaging your car is all part of the service if you take it to a garage. It's pretty standard. They will say it wasn't on in the first place. Lies are very normal when you are a mechanic.
    • Richard53
    • By Richard53 13th Jul 18, 11:45 PM
    • 2,647 Posts
    • 2,241 Thanks
    Richard53
    • #6
    • 13th Jul 18, 11:45 PM
    • #6
    • 13th Jul 18, 11:45 PM
    I lost mine (Ford Mondeo) driving a weeny bit too fast through some deep water. I never replaced it, and never missed it. As others have said, it might make a small difference to noise and aerodynamics, but nothing you'd notice. It was flimsy plastic, so no protection at all. Next time you see an off-road equipped Land Rover, look under the front for the stuff people fit to actually protect their undersides. It will be thick steel or alloy and weigh a ton.
    An hour alone spells freedom to the slave.
    • fred246
    • By fred246 14th Jul 18, 12:55 AM
    • 1,032 Posts
    • 569 Thanks
    fred246
    • #7
    • 14th Jul 18, 12:55 AM
    • #7
    • 14th Jul 18, 12:55 AM
    - you certainly can't prove either way.
    Originally posted by AdrianC
    You can see how a mechanic's mind works. Customer can't prove it - lie to him. They are not qualified. They are not registered. They are not professionals. Lying is normal. It is expected. If I ever take my car in to a garage which is rare I take loads of photos from every direction before it goes in. The mechanic would still say you couldn't prove what date they were taken, it's probably just fallen off etc. On my current car I calculated that I had taken the undertray off 16 times servicing it. I took it to a transmission specialist for DMF/clutch and specifically asked that they replace it. They put it back but broke the plastic and snapped a fitting. I had done it 16 times and not damaged it at all.
    • Tarambor
    • By Tarambor 14th Jul 18, 10:24 AM
    • 3,196 Posts
    • 2,318 Thanks
    Tarambor
    • #8
    • 14th Jul 18, 10:24 AM
    • #8
    • 14th Jul 18, 10:24 AM
    I see fred is on his weekly anti-garage rant. Why didn't you just replace the DMF and clutch yourself Fred given that mechanics are useless and you're a mechanical god?
    • ratrace
    • By ratrace 14th Jul 18, 11:39 AM
    • 565 Posts
    • 376 Thanks
    ratrace
    • #9
    • 14th Jul 18, 11:39 AM
    • #9
    • 14th Jul 18, 11:39 AM
    I see fred is on his weekly anti-garage rant. Why didn't you just replace the DMF and clutch yourself Fred given that mechanics are useless and you're a mechanical god?
    Originally posted by Tarambor

    The type my lecturer called "Bar mechanic" as soon as they talk a load of bs comes flying out
    People are caught up in an egotistic artificial rat race to display a false image to society. We want the biggest house, fanciest car, and we don't mind paying the sky high mortgage to put up that show. We sacrifice our biggest assets our health and time, We feel happy when we see people look up to us and see how successful we are”

    Rat Race
    • James2k
    • By James2k 14th Jul 18, 11:55 AM
    • 31 Posts
    • 2 Thanks
    James2k
    they also affect airflow around the car. less efficiency without the tray, however small.
    • EdGasketTheSecond
    • By EdGasketTheSecond 14th Jul 18, 1:06 PM
    • 621 Posts
    • 328 Thanks
    EdGasketTheSecond
    They are a right pain if you have to do a simple job like change the oil filter. My mercedes has not suffered from not having one at all; lost around 70K miles ago.
    • Head The Ball
    • By Head The Ball 14th Jul 18, 1:16 PM
    • 3,331 Posts
    • 8,682 Thanks
    Head The Ball
    ... On my current car I calculated that I had taken the undertray off 16 times servicing it. I took it to a transmission specialist for DMF/clutch and specifically asked that they replace it. They put it back but broke the plastic and snapped a fitting. I had done it 16 times and not damaged it at all.
    Originally posted by fred246
    Perhaps you weakened and damaged it enough during those 16 removals and replacements that it finally failed on the 17th removal.

    The last straw.
    Every Village has its Idiot.

    If you don't know who your Village Idiot is

    it is probably you.
    • Jackmydad
    • By Jackmydad 14th Jul 18, 1:19 PM
    • 3,078 Posts
    • 9,551 Thanks
    Jackmydad
    They are a right pain if you have to do a simple job like change the oil filter. My mercedes has not suffered from not having one at all; lost around 70K miles ago.
    Originally posted by EdGasketTheSecond
    This is about what I think.
    Mine's still in place. i wouldn't worry if it went.
    Does possibly keeps the engine bay a bit cleaner. (?)
    A right regal pain if you drop a screw etc. and it lodges on there. I needed a bendy camera to retrieve one from mine.
    "Luck happens where hard work meets opportunity"
    • Jonesya
    • By Jonesya 14th Jul 18, 1:38 PM
    • 1,453 Posts
    • 894 Thanks
    Jonesya
    They are a right pain if you have to do a simple job like change the oil filter. My mercedes has not suffered from not having one at all; lost around 70K miles ago.
    Originally posted by EdGasketTheSecond
    I had an old Rover like that, right pain, but with the current car they've thought about it and put in an access flap, so you can do an oil change with the tray still in place.
    • 50Twuncle
    • By 50Twuncle 14th Jul 18, 4:24 PM
    • 8,374 Posts
    • 1,980 Thanks
    50Twuncle
    I was told by "Honest John" that an intact engine undertray was a requirement of the new stricter MOT test ...
    https://www.gov.uk/government/publications/mot-changes-from-may-2018-guidance-for-mot-testers/mot-inspection-manual-changes


    New or changed inspection

    There are new or changed inspections for:
    • strengthening plates and fastening
    • exhaust fumes entering cabin failure, which has been extended to all vehicles
    • inspection of drive shafts, which has been extended to all transmission shafts - including prop shafts
    • drive belts and chains
    • body condition, which now includes unsafe modifications, component security, including undertrays as well as body pillars on goods vehicles
    Last edited by 50Twuncle; 14-07-2018 at 4:33 PM.
    • Jackmydad
    • By Jackmydad 14th Jul 18, 5:03 PM
    • 3,078 Posts
    • 9,551 Thanks
    Jackmydad
    I was told by "Honest John" that an intact engine undertray was a requirement of the new stricter MOT test ...
    https://www.gov.uk/government/publications/mot-changes-from-may-2018-guidance-for-mot-testers/mot-inspection-manual-changes


    New or changed inspection

    There are new or changed inspections for:
    • strengthening plates and fastening
    • exhaust fumes entering cabin failure, which has been extended to all vehicles
    • inspection of drive shafts, which has been extended to all transmission shafts - including prop shafts
    • drive belts and chains
    • body condition, which now includes unsafe modifications, component security, including undertrays as well as body pillars on goods vehicles
    Originally posted by 50Twuncle
    It says "undertray security" in the linked page.
    Doesn't say "presence of"
    So is removing the undertray a fail?
    I can't really see myself that removing one is dangerous. (But I'm prepared to be wrong on that)
    The security of one if fitted is important though.
    "Luck happens where hard work meets opportunity"
    • AdrianC
    • By AdrianC 14th Jul 18, 5:19 PM
    • 17,778 Posts
    • 16,106 Thanks
    AdrianC
    Go to the horse's mouth, not poorly-worded rehashing by journos.


    The undertray should be checked for security, and would be a fail if it's loose. But it being missing is NOT a fail.


    https://www.mot-testing.service.gov.uk/documents/manuals/class3457/Section-6-Body-Structure-and-Attachments.html#section_6.2.1
    • Nilrem
    • By Nilrem 14th Jul 18, 5:29 PM
    • 2,390 Posts
    • 1,567 Thanks
    Nilrem
    Perhaps you weakened and damaged it enough during those 16 removals and replacements that it finally failed on the 17th removal.

    The last straw.
    Originally posted by Head The Ball
    I'd imagine 16 removal and refitting cycles would be well beyond what the manufacturer really expected of the tray.

    If they're made of thin metal or plastic, or fibrous materials things tend not to last many removal cycles, especially when they're in an enviroment as harsh as the underside of the car (where they'll be subject to vibrations, heat, water, salt, cold etc).
    Even just plain bolts in such places have a tendency to rust solid.



    Go to the horse's mouth, not poorly-worded rehashing by journos.


    The undertray should be checked for security, and would be a fail if it's loose. But it being missing is NOT a fail.


    https://www.mot-testing.service.gov.uk/documents/manuals/class3457/Section-6-Body-Structure-and-Attachments.html#section_6.2.1
    Originally posted by AdrianC
    So basically like most things on a car, which usually fall under the "if fitted must work/be secure" rule to allow for the fact that they're not on every model of every car
    • poppasmurf_bewdley
    • By poppasmurf_bewdley 15th Jul 18, 10:29 AM
    • 5,227 Posts
    • 5,343 Thanks
    poppasmurf_bewdley
    These under engine trays are designed to keep - and trap - any lose nut or bolt, or small tool, which you may drop in the engine bay, never to be seen again.

    Probably another EU regulation designed to just frustrate the British!
    "There are not enough superlatives in the English language to describe a 'Princess Coronation' locomotive in full cry. We shall never see their like again". O S Nock
Welcome to our new Forum!

Our aim is to save you money quickly and easily. We hope you like it!

Forum Team Contact us

Live Stats

4,098Posts Today

6,737Users online

Martin's Twitter
  • RT @samgio1997: So glad you talked about the importance of taking out holiday insurance on this morning as a few years ago my auntie's pare?

  • RT @mmhpi: "Two years ago, I was in the fortunate position to be able to found @mmhpi... I?m incredibly proud of the work the team there is?

  • It means you should either have an annual policy in place, or book a specific single trip policy when you book https://t.co/oBDx8TmzQU

  • Follow Martin