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Joined: Mar 2009
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Originally Posted by John V6
Good to see MMC has built into the CX the classic trad foible of bad earths


They have been consistent, they also put it in the Aero as well John.


Everyone loves a Morgan. Even me, unless it's broken again.
Joined: Apr 2022
Posts: 11
R
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Posts: 11
Good morning,

Had a similar message/problem on my plus 6 two days ago.
Red stop sign, turned off and restarted.

When restarted the yellow check engine light came on.
Dealer thought battery discharge may be causing the problem and advice was disconnect battery and put on charge.
That didn’t fix it but I discovered two things.

Battery clamps were finger tight and put on dry which I dislike.
Vaseline, cleaned and tightened properly still no joy but was a breakdown waiting to happen.
Car has only done 500 miles!

Read the OBD port and found the VSS sensor on gearbox was causing the problem, use BMW B58 to access.
Nothing obvious on inspection.’

Car going to dealer but has anyone else had VSS problems?

Interesting reading the ECU I am getting an impressive 22mpg,
Norway in May might be interesting with a just over 200 mile range.

Joined: Jul 2007
Posts: 27,802
Likes: 749
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Originally Posted by Alistair
Originally Posted by John V6
Good to see MMC has built into the CX the classic trad foible of bad earths


They have been consistent, they also put it in the Aero as well John.


That is called tradition


JohnV6
2022 CX Plus Four
2025 Renault Scenic Alpine etech "Yvette"
Joined: Jul 2007
Posts: 27,802
Likes: 749
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Originally Posted by RussJ
Good morning,

Had a similar message/problem on my plus 6 two days ago.
Red stop sign, turned off and restarted.

When restarted the yellow check engine light came on.
Dealer thought battery discharge may be causing the problem and advice was disconnect battery and put on charge.
That didn’t fix it but I discovered two things.

Battery clamps were finger tight and put on dry which I dislike.
Vaseline, cleaned and tightened properly still no joy but was a breakdown waiting to happen.
Car has only done 500 miles!

Read the OBD port and found the VSS sensor on gearbox was causing the problem, use BMW B58 to access.
Nothing obvious on inspection.’

Car going to dealer but has anyone else had VSS problems?

Interesting reading the ECU I am getting an impressive 22mpg,
Norway in May might be interesting with a just over 200 mile range.


I'll do you a deal you take my 3.7l Roadster it is averaging 28 mpg & I 'll look after your CX. 22 mpg seems very low for a CX .


JohnV6
2022 CX Plus Four
2025 Renault Scenic Alpine etech "Yvette"
Joined: Nov 2011
Posts: 7,342
Likes: 49
Talk Morgan Guru
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Originally Posted by RussJ
Good morning,

Had a similar message/problem on my plus 6 two days ago.
Red stop sign, turned off and restarted.

When restarted the yellow check engine light came on.
Dealer thought battery discharge may be causing the problem and advice was disconnect battery and put on charge.
That didn’t fix it but I discovered two things.

Battery clamps were finger tight and put on dry which I dislike.
Vaseline, cleaned and tightened properly still no joy but was a breakdown waiting to happen.
Car has only done 500 miles!

Read the OBD port and found the VSS sensor on gearbox was causing the problem, use BMW B58 to access.
Nothing obvious on inspection.’

Car going to dealer but has anyone else had VSS problems?

Interesting reading the ECU I am getting an impressive 22mpg,
Norway in May might be interesting with a just over 200 mile range.

I hope you get this all sorted....


A Morgan Identified Fastidious Owner...
2011 4/4 Bespoke, 1981 Delorean, Auburn Boat Tail
Joined: Sep 2022
Posts: 1,163
Likes: 354
Has a lot to Say!
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Has a lot to Say!
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Posts: 1,163
Likes: 354
Originally Posted by RussJ


Read the OBD port and found the VSS sensor on gearbox was causing the problem, use BMW B58 to access.
Nothing obvious on inspection.’

Car going to dealer but has anyone else had VSS problems?

Interesting reading the ECU I am getting an impressive 22mpg,
Norway in May might be interesting with a just over 200 mile range.


That's very interesting Russ... with which diagnostic device you have read the ECU On the OBD Port ?


Clemens

PlusFour Red Baron MY 2022
Joined: Sep 2015
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Has a lot to Say!
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Posts: 1,341
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Originally Posted by John V6
Originally Posted by RussJ
Good morning,

Had a similar message/problem on my plus 6 two days ago.
Red stop sign, turned off and restarted.

When restarted the yellow check engine light came on.
Dealer thought battery discharge may be causing the problem and advice was disconnect battery and put on charge.
That didn’t fix it but I discovered two things.

Battery clamps were finger tight and put on dry which I dislike.
Vaseline, cleaned and tightened properly still no joy but was a breakdown waiting to happen.
Car has only done 500 miles!

Read the OBD port and found the VSS sensor on gearbox was causing the problem, use BMW B58 to access.
Nothing obvious on inspection.’

Car going to dealer but has anyone else had VSS problems?

Interesting reading the ECU I am getting an impressive 22mpg,
Norway in May might be interesting with a just over 200 mile range.


I'll do you a deal you take my 3.7l Roadster it is averaging 28 mpg & I 'll look after your CX. 22 mpg seems very low for a CX .


I thought that too - I typically see 25mpg roof down, and +/-30mpg roof up/on, which isn't too shabby for a V8.
I must try harder!

Will


Formerly Aero S5 #80
Currently 911 (992) Targa in python green
Joined: Jan 2022
Posts: 91
Likes: 2
Just Getting Started
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Just Getting Started
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Posts: 91
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On the subject of fuel consumption, over the last 18 months I have averaged 43 mpg (a mix of E5 & E10) between fills, with a best of 52 mpg. The digital display grossly over reads and my figures are fill to fill. I have a Plus four Auto.

Joined: Jun 2015
Posts: 2,085
Likes: 69
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Joined: Jun 2015
Posts: 2,085
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Originally Posted by Derek596
On the subject of fuel consumption, over the last 18 months I have averaged 43 mpg (a mix of E5 & E10) between fills, with a best of 52 mpg. The digital display grossly over reads and my figures are fill to fill. I have a Plus four Auto.

The sceptic in me suggests that it is to manufacturers advantage to ensure that fuel consumption read-out is always on the generous side. Whilst we may resort to doing a brim-to-brim tank full and calculate on the mileage covered, another issue occurs to me.
As we all know, speedometers are always set to read high, maybe by 10% or so, in order to avoid breaking the law. However, does that not mean that the odometer will also read high by a similar amount as it is getting its signals from the same source.
So our calculated mpg could well be 10% better than actually achieved. Having said that, if the purpose is merely to compare your car with mine, we both may have similar errors so that evens things out a bit.


Doug
2011 Plus 4 in Rich Maroon

1972 750 “ComDom” sprinter
1958 Triton 650
1992 Triumph Trophy 900
Joined: Apr 2022
Posts: 11
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Posts: 11
Good evening.
Tried to send screen on OBD but failed!
It is the WOW reader which i think is Wurth.
Looked at a much cheaper £125 system that seems to read all BMW.
Foxwell 510 Elite.
Anybody know anything about them?

Russ

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