Permanently disable Start and Stop

Superfane

Guest
Hello,

I have a 5F FR with a 1.4 Start and Stop engine and I was wondering if anyone knows how to permanently disable the S&S system. I can disable it using the push button on the dashboard and it stays off until I remove the ignition, but when I put the key in again, the system is activated automatically... There is any way to get around this?
 

@JamesSM

Active Member
Jul 26, 2013
76
0
Why would you want to permanently disable it.... do you have shares in Royal Dutch Shell or something? ;)
 

Deleted member 74601

Guest
It's not annoying if you know how to use it, and the fuel savings are massive.

Just get used to it, learn to try and anticipate lights and look at what other lights are doing and it's like it's not even there.
 

Superfane

Guest
In order to be efficient, the system needs to keep the engine off for at least 5 seconds (otherwise you use more fuel to start the engine than you save while you keep it off). If you have a lot of start and stop sessions (for example when you drive slowly in a traffic jam), try to see how many of them are less than 5 seconds.
 

dw911

Active Member
Mar 30, 2013
1,036
6
I belive at the mo there is no way to turn it off permanently, but I'm zure someone will come up with a way before long

I take it you know that when you come to a stop if you only keep light pressure on the brake pedal then the stop start won't kick in.
 

Stegor

Active Member
Jul 17, 2011
332
0
I also want to turn it off. It's fine in a manual, you just leave the clutch dipped, but in a DSG it's bloody annoying when you stop with any force on the brake peddle and the engine cuts out.

Oh, and the fuel savings aren't massive even in urban cycle. Probably taking the junk out of the boot and the car mats out will save as much.

Hate it.
 
Jun 15, 2013
268
2
Hello,

I have a 5F FR with a 1.4 Start and Stop engine and I was wondering if anyone knows how to permanently disable the S&S system. I can disable it using the push button on the dashboard and it stays off until I remove the ignition, but when I put the key in again, the system is activated automatically... There is any way to get around this?

If SEAT allowed you to permanently disable it Seat would have to provide the DVLA with different CO2 figures for cars with and without the feature. This would then cost you loads more in annual road tax (but in truth you would use sod all extra fuel).

Simply press the button on the dash if you want to disable it.
 

Stegor

Active Member
Jul 17, 2011
332
0
If SEAT allowed you to permanently disable it Seat would have to provide the DVLA with different CO2 figures for cars with and without the feature. This would then cost you loads more in annual road tax (but in truth you would use sod all extra fuel).

Simply press the button on the dash if you want to disable it.

Likely to be 1 band higher = around £20 for my car - hardly 'loads' more.
 

mattsleon

Active Member
Aug 21, 2013
9
0
For the 1.4 though it could be the difference between band C, which is £30, or band D, which is £105, so that's a big jump in my book.
 

ZBOYD

Looking up at the stars!
May 19, 2001
9,468
15
Cheshire
www.seatcupra.net
It does a bit more than just switch the engine on and off, worth bearing in mind the level of technology that is going into the latest engines, and why were getting lower tax bands as a result.

From SEAT's media on the new Leon

Start/stop and recuperation system

In the new SEAT Leon, the start/stop system deactivates the engine when the car is at a standstill with the gear stick in neutral and the clutch disengaged. On re-engaging gear, a powerful starter motor restarts the engine – quietly, smoothly and quickly.

The start/stop system, which can be deactivated by the driver at any time, also works perfectly with the DSG transmission. Thanks to a very powerful battery with an excellent cycle life, the system remains active even under extremely cold weather conditions. The start/stop system offers fuel savings of up to four percent.

A further efficiency measure in the new SEAT Leon is the recuperation system. It uses intelligent voltage regulation in the alternator to recover energy under braking and trailing throttle conditions. This is temporarily stored in the battery, flowing back into the vehicle electric system when the car subsequently accelerates. This takes the load off the alternator by enabling it to run from time-to-time on a lower voltage or to be switched off entirely. It draws less power from the engine, resulting in lower fuel consumption.
 
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weatherlight

Guest
When I hit heavy traffic or jams, I temporarily disable it. Once I reach some traffic lights or a long dead queue in front, I enable it again to save gas and preserve the environment :)
 
Jun 15, 2013
268
2
The BMW 118D I had before the Leon was 119 CO's and had stop/start. If the car had been a few months older it would have been 135 CO2's and the only difference would have been no stop/start. The RFL today would have been £125 as opposed to £30 a year. £95 a year is a good saving in my book.

Had the car 5 years and it saved a few thimbles of fuel. In the real world owners were reporting MPG figures that were virtually identical.

Works wonders in the official tests but not on the public highway.

But I say keep fitting it and saving me money.
 

Stegor

Active Member
Jul 17, 2011
332
0
For the 1.4 though it could be the difference between band C, which is £30, or band D, which is £105, so that's a big jump in my book.

Even that's only 1 tank of fuel. Also on a £24k car that does 35 to the gallon the odd 50 quid per year is hardly worth worrying about. I'd pay £300 tomorrow to have the stop/start removed. It spoils an otherwise near perfect car.
 
Jun 15, 2013
268
2
Most people forget there is a list of conditions that must be met before stop/start will function, the main 2 are battery state and outside temp.

In the 5 years I had the BMW 4 stop/starts were the most it would manage when driving through town. After that it needed a decent run to put enough charge back into the battery.

When the outside temp below 4 degrees stop/start did not work, that was how it was designed. Considering the recent cold winters during my morning commute and evening commute I could go weeks without it working.

Even in the warmth of London it would soon stop working and how would you do a decent run to re-charge the battery.
 
Jun 15, 2013
268
2
Even that's only 1 tank of fuel. Also on a £24k car that does 35 to the gallon the odd 50 quid per year is hardly worth worrying about. I'd pay £300 tomorrow to have the stop/start removed. It spoils an otherwise near perfect car.

Business users would tell you differently, makes a huge difference to company car tax.
 

dw911

Active Member
Mar 30, 2013
1,036
6
Most people forget there is a list of conditions that must be met before stop/start will function, the main 2 are battery state and outside temp.

In the 5 years I had the BMW 4 stop/starts were the most it would manage when driving through town. After that it needed a decent run to put enough charge back into the battery.

When the outside temp below 4 degrees stop/start did not work, that was how it was designed. Considering the recent cold winters during my morning commute and evening commute I could go weeks without it working.

Even in the warmth of London it would soon stop working and how would you do a decent run to re-charge the battery.


That's a valid point, but I can understand why people with a mk3 leon find it annoying
My audi a3 12 plate is much like you describe the bmw above, it strugglers to do more than 3 stop starts before the dash display says its no longer available
My mk3 leon on the other hand never seems to stop starting if you allow it too
 
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