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Discussion Starter #1
I have a bog standard 1.8. Almost every speed bump scrapes. Why are they so low and so annoying? I’ve frowned so many times the sides of the bumper and the wheel arch trim no longer click into place properly.

I’ve even removed the two silly fins on each side under the bumper but that didn’t make a blind bit of difference.

Any suggestions?

Thanks
L
 

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Your car must be lowered as my car has no issues going over speed bumps. Even my Type R which was lowered 15mm, so 25mm kess than your 1.8 had no issues.

Sent from my SM-N915G using Tapatalk
 

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I have the same issue! All the speed bumps near me must be huge, because I am forever scraping! And I am about to fit lowering springs, arrg.
 

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Do you have mudflaps, they do hang lower.

If not then it shouldn't ground on bumps, not even those nasty yellow plastic ones, none of mine have.
 

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I have a bog standard 1.8. Almost every speed bump scrapes. Why are they so low and so annoying? I’ve frowned so many times the sides of the bumper and the wheel arch trim no longer click into place properly.

I’ve even removed the two silly fins on each side under the bumper but that didn’t make a blind bit of difference.

Any suggestions?

Thanks
L
Mine's a 2009 1.8ex and it still scrapes a bit. However when I first got it it was even worse, so got it up on a ramp and found the whole underside panel was not fitted properly, there were loads of missing fixings plus to the two front mud flaps were cracked on the very inside edge and the loose parts were pushed downwards at motorway speeds.


Refitted all the fixings and replaced some of the plastic plugs with new parts. Then drilled and stitched the mud flaps back together. Then found I'd shifted the inner arches whilst buggering about, so had to order some new fixings for those and reset the plastic arch inners.

Overall improvement is significant but it does still scrape...so yes, it is a low car. I've certainly never owned a car with this issue.
 

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Ex-Pat Geordie!
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My 1.6 seems to struggle on the speed bumps up here....
 

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Here are a couple of pictures. One of the passenger arch, the other showing the clearance under the bumper. I'm down in Kent and the speed bumps look like stumpy red pyramids



https://www.amazon.co.uk/photos/share/gqI9MKvHNhqr2JbPpZuUwYBy1dN2qj9ittMCmBW6ln1


https://www.amazon.co.uk/photos/share/Lg009A7IUVj8mKbNqqjPuAHAugZVlYgvLlXMUqVfGOr
Looks pretty standard to me, and you don't have the mudguards so it must be the under tray catching.

A random thought; a colleague of mine has the new Type R and she was complaining of it scraping. I looked underneath and the aluminium service hatch in the middle of the plastic under tray had been fitted incorrectly so the front edge of the metal panel hung below the plastic edge...meaning it caught on bumps and had been bent at some point, which made the scraping worse.

Have you had it up on some ramps or just a jack so you can have a proper look underneath? If there's something out of place you'll be able to see it straight away. Based on my experience the plastic trays are often not fitted correctly or had the fixings broken, making it flex and catch more readily.

Another thought; tyre pressures? They look a little low to me so check those as that could make the mm difference you need...mine are best at 31psi, anything lower and it affects the mpg, anything higher and the ride is ridiculously hard.
 

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Discussion Starter #13
Thanks and oops - I know the service tray is under the plastic surround as that's where I put it last time :frown2:. I can't remember if that's where it was the first time I gave it a service or not. I definitely have two bolts missing on one side too so It's probably maybe 1/2 an inch too low. I was going to sort this out when I do the next service in the next few weeks.
 

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I had scraping problems too and it was the undertray hanging too low. When fitting my Type S kit to my 5 door i removed the front bumper
and refitted the undertray to the front of the car with some 10mm plastic push rivets.
One of the bolts had sheered off / rusted so id definately recommend replacing all metal bolts with plastic onces.


My mechanic took the metal undercover off completely instead of fixing the undertray so now im guessing im loosing MPG due to less aerodynamics ? maybe its good for extra cooling ?
 
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