How Accurate are BMW speedos

JLR1969 · 01-12-2010, 08:42 AM

If you were driving towards a speed camera van with 98 mph indicated on the speedo what would be the real speed??

As you can tell I am a little concerned.

Thanks

creepy coupe · 01-12-2010, 08:45 AM

94/95 MPH, of the ones I've checked against various Tomtoms, they have all been + 2 MPH at 80 MPH, I suppose tyre wear will make a small difference, but I'd say you will certainly be under a ton

dxb335d · 01-12-2010, 08:46 AM

What Del says mate. Those camera vans can see a long distance. Where you travelling over a ton then saw it and slowed down?

They might not have even been operating it, did you see the operator behind the camera?

Palmnuts · 01-12-2010, 08:48 AM

Quote:

Originally Posted by JLR1969

If you were driving towards a speed camera van with 98 mph indicated on the speedo what would be the real speed??

As you can tell I am a little concerned.

Thanks

Hey Jon - where you been pal?

When I got done on the M6-toll doing 99mph, my cruise control, and therefore my speedo on my (BMW) M6 was set to 100mph exactly. Pretty precise actually.

Were you on a motorway? If you were caught it'll only be a fixed penalty - that's what I got for 99mph anyway.

It's not like you to drive at speeds like that - surely your car was burning too much diesel?

dxb335d · 01-12-2010, 08:51 AM

You only got 3 points and 60 quid for that Palmnuts?

JLR1969 · 01-12-2010, 08:54 AM

Quote:

Originally Posted by creepy coupe

94/95 MPH, of the ones I've checked against various Tomtoms, they have all been + 2 MPH at 80 MPH, I suppose tyre wear will make a small difference, but I'd say you will certainly be under a ton

Thanks, I was hoping for at least 10% less

Quote:

Originally Posted by dxb335d

What Del says mate. Those camera vans can see a long distance. Where you travelling over a ton then saw it and slowed down?

They might not have even been operating it, did you see the operator behind the camera?

I was doing exactly 98mph definitely not more, the van was on a gantry, it was so far ahead that I could not see the markings only the fact it was a van. It is a very flat straight road so it could easily have seen me. Did not see the operator, lets hope he was knocking one out in the van

Quote:

Originally Posted by Palmnuts

Hey Jon - where you been pal?

When I got done on the M6-toll doing 99mph, my cruise control, and therefore my speedo on my (BMW) M6 was set to 100mph exactly. Pretty precise actually.

Were you on a motorway? If you were caught it'll only be a fixed penalty - that's what I got for 99mph anyway.

It's not like you to drive at speeds like that - surely your car was burning too much diesel?

Hello mate, Happy New Year.

Was on the M40, its not like me you are right, I would feel happy about 3 points if I was caught but am worried it may go straight to court.

Palmnuts · 01-12-2010, 09:21 AM

Quote:

Originally Posted by dxb335d

You only got 3 points and 60 quid for that Palmnuts?

Yes - I think I was quite lucky though.

dxb335d · 01-12-2010, 09:22 AM

I do too mate!

Van was it?

Palmnuts · 01-12-2010, 09:23 AM

Quote:

Originally Posted by dxb335d

I do too mate!

Van was it?

No, a man on a bridge with the gun followed by a Police car that came down the slip road and stopped me. Copper was very reasonable!

Palmnuts · 01-12-2010, 09:25 AM

Quote:

Originally Posted by JLR1969

Thanks, I was hoping for at least 10% less

I was doing exactly 98mph definitely not more, the van was on a gantry, it was so far ahead that I could not see the markings only the fact it was a van. It is a very flat straight road so it could easily have seen me. Did not see the operator, lets hope he was knocking one out in the van

Hello mate, Happy New Year.

Was on the M40, its not like me you are right, I would feel happy about 3 points if I was caught but am worried it may go straight to court.

Happy New Year Jon!

98mph indicated - should be about 95mph then. If you did get caught, I'm sure it'll be a fixed penalty. Don't worry about it until it happens!

creepy coupe · 01-12-2010, 09:26 AM

The next two weeks will be a right Barsteward, fingers crossed.

FJc335 · 01-12-2010, 10:04 AM

Tested mine with 3 different GPS, showed up (-5) on all.

JLR1969 · 01-12-2010, 10:55 AM

Thanks guys so that's 93mph the further away from 98 mph the better.

Definitely lesson learnt, lets hope its not the hard way.

willhollin · 01-12-2010, 10:56 AM

Just remember not to bend over in the showers and you should be fine.

JLR1969 · 01-12-2010, 12:28 PM

Quote:

Originally Posted by willhollin

Just remember not to bend over in the showers and you should be fine.

I will say hi to all the gay boys for you Will, I am sure they will remember you fondly!

Hotcoupe · 01-12-2010, 12:34 PM

Quote:

Originally Posted by JLR1969

If you were driving towards a speed camera van with 98 mph indicated on the speedo what would be the real speed??

As you can tell I am a little concerned.

Thanks

Was this today?

willhollin · 01-12-2010, 12:36 PM

Quote:

Originally Posted by JLR1969

I will say hi to all the gay boys for you Will, I am sure they will remember you fondly!

Say hello to Chico if you see him.

Shortty · 01-12-2010, 01:05 PM

Quote:

Originally Posted by Palmnuts

No, a man on a bridge with the gun followed by a Police car that came down the slip road and stopped me. Copper was very reasonable!

There's a lot less paperwork involved in writing a ticket than summonsing someone to court. Provided you pass the attitude test most cops will go for the easy option ...

JLR1969 · 01-12-2010, 02:29 PM

Quote:

Originally Posted by Hotcoupe

Was this today?

Yes, between J2 & J3 on the M40 heading North

ElegantSpoon · 01-12-2010, 03:14 PM

Quote:

Originally Posted by willhollin

Say hello to Chico if you see him.

Loves his mum!

M3-FAST · 01-12-2010, 06:03 PM

Quote:

Originally Posted by JLR1969

If you were driving towards a speed camera van with 98 mph indicated on the speedo what would be the real speed??

As you can tell I am a little concerned.

Thanks

Both the E90 M3 and the E93 vert speedo's were both 5% optimistic so your true speed would have been about 93 ish - this was measured against an Origin B2 GPS in the vert and a POGO Alert GPS in the M3. The digital speed readout that you can display in the middle of the dash is between the two (2.5% out).

JLR1969 · 01-12-2010, 06:05 PM

Quote:

Originally Posted by M3-FAST

Both the E90 M3 and the E93 vert speedo's were both 5% optimistic so your true speed would have been about 93 ish - this was measured against an Origin B2 GPS in the vert and a POGO Alert GPS in the M3. The digital speed readout that you can display in the middle of the dash is between the two (2.5% out).

Thanks for the confirmation, at this speed will I get a Fixed Penalty or a court appearance do you think

01-12-2010, 08:42 AM	#1
JLR1969 Major General 1849 Rep 7,000 Posts Drives: Kubota GR1600 Join Date: Dec 2008 Location: England iTrader: (1)	How Accurate are BMW speedos If you were driving towards a speed camera van with 98 mph indicated on the speedo what would be the real speed?? As you can tell I am a little concerned. Thanks
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01-12-2010, 08:45 AM	#2
creepy coupe Lieutenant General 1832 Rep 13,043 Posts Drives: BMW M340I G20 Join Date: Aug 2007 Location: UK iTrader: (2) Garage List 2015 BMW 435d [0.00] 2009 335i [0.00]	94/95 MPH, of the ones I've checked against various Tomtoms, they have all been + 2 MPH at 80 MPH, I suppose tyre wear will make a small difference, but I'd say you will certainly be under a ton
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01-12-2010, 08:46 AM	#3
dxb335d The Tarmac Terrorist 1046 Rep 29,344 Posts Drives: 997.2 GT3 Join Date: Mar 2007 Location: ''Fandango Towers'' iTrader: (3) Garage List 2010 Porsche 997.2 GT3 [9.50] 2003 BMW E46 M3 [6.00] 2007 BMW E92 335D [5.50]	What Del says mate. Those camera vans can see a long distance. Where you travelling over a ton then saw it and slowed down? They might not have even been operating it, did you see the operator behind the camera? __________________ 997.2 GT3
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01-12-2010, 08:51 AM	#5
dxb335d The Tarmac Terrorist 1046 Rep 29,344 Posts Drives: 997.2 GT3 Join Date: Mar 2007 Location: ''Fandango Towers'' iTrader: (3) Garage List 2010 Porsche 997.2 GT3 [9.50] 2003 BMW E46 M3 [6.00] 2007 BMW E92 335D [5.50]	You only got 3 points and 60 quid for that Palmnuts? __________________ 997.2 GT3
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01-12-2010, 09:22 AM	#8
dxb335d The Tarmac Terrorist 1046 Rep 29,344 Posts Drives: 997.2 GT3 Join Date: Mar 2007 Location: ''Fandango Towers'' iTrader: (3) Garage List 2010 Porsche 997.2 GT3 [9.50] 2003 BMW E46 M3 [6.00] 2007 BMW E92 335D [5.50]	I do too mate! Van was it? __________________ 997.2 GT3
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01-12-2010, 09:26 AM	#11
creepy coupe Lieutenant General 1832 Rep 13,043 Posts Drives: BMW M340I G20 Join Date: Aug 2007 Location: UK iTrader: (2) Garage List 2015 BMW 435d [0.00] 2009 335i [0.00]	The next two weeks will be a right Barsteward, fingers crossed.
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01-12-2010, 10:04 AM	#12
FJc335 First Lieutenant 26 Rep 341 Posts Drives: platinum bronze e92 Join Date: May 2007 Location: Smallville- NJ iTrader: (0)	Tested mine with 3 different GPS, showed up (-5) on all. __________________ Broken promises don't upset me. I just think, why did they believe me?
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01-12-2010, 10:55 AM	#13
JLR1969 Major General 1849 Rep 7,000 Posts Drives: Kubota GR1600 Join Date: Dec 2008 Location: England iTrader: (1)	Thanks guys so that's 93mph the further away from 98 mph the better. Definitely lesson learnt, lets hope its not the hard way.
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01-12-2010, 10:56 AM	#14
willhollin Major General 275 Rep 9,914 Posts Drives: VW T5 Join Date: Apr 2008 Location: Worcestershire iTrader: (1) Garage List 2007 BMW E92 330d SE [10.00] 2010 Transporter T5 ... [0.00]	Just remember not to bend over in the showers and you should be fine. __________________
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