BMW 3 series don't like water?

BMW 3 series don't like water?

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Discussion

DaveOrange

882 posts

211 months

Thursday 30th January 2014
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One of my sales reps has a 13 plate 320d. She drove it through what she called "a bit of water". That "bit of water" has resulted in a new engine and a new clutch and a bill in excess of £9k. Fortunately and to my surprise the insurance company are picking the bill up.

RobM77

35,349 posts

236 months

Thursday 30th January 2014
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rscott said:
So BMW mount components as low down as possible to improve CoG. ... So how much does an air intake weight? rolleyes
banghead

Do I have to explain my first post for a fourth time, or are you really just never going to get this?

Edited by RobM77 on Thursday 30th January 15:38

vikingaero

10,561 posts

171 months

Thursday 30th January 2014
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DaveOrange said:
One of my sales reps has a 13 plate 320d. She drove it through what she called "a bit of water". That "bit of water" has resulted in a new engine and a new clutch and a bill in excess of £9k. Fortunately and to my surprise the insurance company are picking the bill up.
"Most" Insurers still do pick up the tab for hydraulic locking. No-one intentionally wants their car engine to FUBAR when fording and sometimes people make mistakes. There are a some skankier insurance outfits that specifically exclude it.

Debaser

6,177 posts

263 months

Thursday 30th January 2014
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Fastdruid said:
RobM77 said:
It's lower because the engineers try to make it lower to make it handle better. It's lighter for the same reason.
Ah yes. Massively lighter.

Lets pick two comparable cars

2007-2010 BMW 525i Touring [218hp] 1580Kg
2007-2010 Ford Mondeo 2.5T [216hp] 1600Kg

I can see where they've shaved a massive amount off there to make it handle better.
Mondeo and 5 series are in different segments. To make your point you need to compare the Mondeo with a 3 series.

davepoth

29,395 posts

201 months

Thursday 30th January 2014
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Debaser said:
Fastdruid said:
RobM77 said:
It's lower because the engineers try to make it lower to make it handle better. It's lighter for the same reason.
Ah yes. Massively lighter.

Lets pick two comparable cars

2007-2010 BMW 525i Touring [218hp] 1580Kg
2007-2010 Ford Mondeo 2.5T [216hp] 1600Kg

I can see where they've shaved a massive amount off there to make it handle better.
Mondeo and 5 series are in different segments. To make your point you need to compare the Mondeo with a 3 series.
No, you don't.

The 3 Series and Mondeo are about the same price, but the argument here is about size. The 5 Series is the closest comparison there in terms of cabin space. That cabin space comes along with a car that's dimensionally very close to the Mondeo.

5lab

1,684 posts

198 months

Thursday 30th January 2014
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it depends if you consider 'classes' based on size, or cost.

A 3 series costs about as much as a mondeo, probably a bit more.

A mondeo is the same size as a 5 series. they are the same length (within 3cm anyway), same width, and same height. The mondeo has more room inside, and according to parkers (who knows if that's accurate??) weighs ~150kg less. The BMW is engineered for a lot of things, and it probably drives nicer, however the marginally lower roofline compared to other cars is more about style than anything else. If you consider the x1, x3, x5, x6, 3 series gt and 5 series gt, I recon the average height of a bimmer is taller than your average ford anyway

Simes205

4,557 posts

230 months

Thursday 30th January 2014
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Simes205 said:
Back on topic our e91 air intake feed is above the rad. So that doesn't really Hoover up water.
Just to get this back up on topic!

Debaser

6,177 posts

263 months

Friday 31st January 2014
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davepoth said:
No, you don't.

The 3 Series and Mondeo are about the same price, but the argument here is about size. The 5 Series is the closest comparison there in terms of cabin space. That cabin space comes along with a car that's dimensionally very close to the Mondeo.
Yes, you do.

He said 'comparable cars'. By your logic a VW Up is comparable with a 911 because they have similar cabin space.

Healey73

1,181 posts

286 months

Friday 31st January 2014
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This is the strangest 'argument' I've seen on here for a while made more surreal by the posting of a random component. Carry on

-Z-

6,122 posts

208 months

Friday 31st January 2014
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Drove the M5 through the underwater road into Yalding this morning, a good 6-8 inches deep for over 1/2 a mile.

Took it nice and slow, no problem.......

mike9009

7,080 posts

245 months

Saturday 1st February 2014
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-Z- said:
Drove the M5 through the underwater road into Yalding this morning, a good 6-8 inches deep for over 1/2 a mile.

Took it nice and slow, no problem.......
Obviously the M5 has had its performance compromised to get it through deep water...

anonymous-user

56 months

Saturday 1st February 2014
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Do you not think there might just be more 3 series "stuck" in deep water simply due to the fact there are more 3 series on the road these days? On my Mway commute in the morning, i reckon just about every 3rd car is a 3 series!




GrumpyV8

138 posts

156 months

Saturday 1st February 2014
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Whilst not wishing to derail this thread and also appreciating that the height of the air intake above ground level is important with regard to driving through water, does the height (or otherwise) of the alternator and associated electrics have any bearing on how a vehicle copes with water?

RobM77

35,349 posts

236 months

Saturday 1st February 2014
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GrumpyV8 said:
Whilst not wishing to derail this thread and also appreciating that the height of the air intake above ground level is important with regard to driving through water, does the height (or otherwise) of the alternator and associated electrics have any bearing on how a vehicle copes with water?
yes There are a number of ways that water can harm a car, namely the air intake or exhaust, both of which can ingest water into the engine's combustion chambers (very bad! Water doesn't compress like air, so it can crack components when the piston comes back up) or the electrics, which can obviously cause the car to cut out (normally ok once things dry) or if water gets into more complicated electrics or electronics, short out and damage something. So those are in descending order of criticality. Basically, the higher a car is, the better, so a Range Rover would on average cope better through a flood than an MX5. This, with the accompanying picture, was the premise of my first post, in a generic sense prior to talking about specifics. I presume in theory if you water proofed an engine, sealing the electronics etc, then provided you had the air intake and exhaust out of the water, it would run; but most cars won't have that sort of protection.

Willy Nilly

12,511 posts

169 months

Saturday 1st February 2014
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Here is a video of a tractor driving down a road that has flooded http://www.youtube.com/watch?v=ZRrHlcW8Md0 It is a relatively big tractor and the water is higher than the floor of the cab and up to the top of the bonnet. The air intake is normally on the top of and in front of the radiator and looks to me to be under water.

They are designed to work in rice fields, that said, they are hellish complex beasts and the whole machine will be covered in sensors and ecus all of which would have been under water. It will probably be throwing a few error codes for a while...

Previous

1,463 posts

156 months

Saturday 1st February 2014
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rscott said:
So BMW mount components as low down as possible to improve CoG. ... So how much does an air intake weight? rolleyes
Less than an alternator it would seem. Intakes = heaviest part of the car. Its why all those lightweight K&N sales are so popular!..... biggrin

Pooh

Original Poster:

3,692 posts

255 months

Saturday 1st February 2014
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Max_Torque said:
Do you not think there might just be more 3 series "stuck" in deep water simply due to the fact there are more 3 series on the road these days? On my Mway commute in the morning, i reckon just about every 3rd car is a 3 series!
I doubt that is the reason because they are not a particularly common car in this area.