Seat Leon Running Rough, Starting & Power Loss Problems

Running Rough, Starting & Power Loss Problems and faults
Power loss on uphill

I have a seat leon 1.4 16v 2009 it losses power on uphill and I have to go in 2nd or some time in first gear.i have changed the all the filters ,spark plug but it doesn't work and some time I hear a little explosion noise in my engine when...

2009 Seat Leon 1.4 petrol 16v
Posted: Sep 21, 2023
1
reply
Driver mode ineffectual

no change in any of the modes also high revs idling

2020 Seat Leon fr tsi evo
Posted: Oct 19, 2022
16
replies
Hi I have a 2014 seat leon 1.4 tsi (150bhp) when driving on the motorway in either 5th or 6th gear the engine will loose power for a few seconds but will then cut back in and acerlerate fine ,I have no fault codes come up either? Please help

I have exactly the same problem as below although only in the wet and wonder if any has come across this / managed to diagnose please?

2014 Seat Leon 1.4 tsi fr 150bhp
Posted: Jul 28, 2022
7
replies
Increased fuel consumption and reduction in power.

My long term fuel consumption has recently dropped from 65 mpg to 50 - 52 mpg in the last month. I have had the car 2 + years and can easily get 75 + mpg from it on most long moterway journies. Same journey now I am struggeling to get 65. T...

2016 Seat Leon 1.6 Ecomotive
Posted: Dec 27, 2021
1
reply
Fuel pump in tank probs

Fuel pump replaced in tank still starved of diesel, cutting out,coil light flashing, no power

2014 Seat Leon 2.0tdi fr,
Posted: Oct 14, 2021
1
reply
Hi I have a 2014 seat leon 1.4 tsi (150bhp) when driving on the motorway in either 5th or 6th gear the engine will loose power for a few seconds but will then cut back in and acerlerate fine ,I have no fault codes come up either? Please help

Hi I have a 2014 seat leon 1.4 tsi (150bhp) when driving on the motorway in either 5th or 6th gear the engine will loose power for a few seconds but will then cut back in and acerlerate fine ,I have no fault codes come up either? Please hel...

2014 Seat Leon 1.4 tsi fr 150bhp
Posted: Nov 14, 2020
1
reply
Pulling back

Fantastic car to drive but after a night of torrential wind and rain I found that pulling away straight away caused the car to pull back for a while.it stopped doing it as engine warmed up.not a major problem just a bit annoying

2001 Seat Leon 1.2s
Posted: Jul 29, 2018
1
reply
Smoking and engine shaking

Hi I'm wondering if anyone can help me my car when it's started is fine for about 2 mins then it starts to judder and alot of smoke comes out the back white smoke to be exact now I have had the car checked on a computer and got no faults I'...

2005 Seat Leon 1.9tdi FR
Posted: Mar 13, 2015
0
replies
Surging and rumbling noises from fuel tank

My 12 weeks old 2014 Seat Leon has started making surging and rumbling noises coming from the fuel tank. The noise is very loud both on the in and outside and occur at low speeds, accelerations, braking and reversing. It happens with a t...

2014 Seat Leon 1.6 TDI
Posted: Mar 4, 2014
1
reply
CAR HAVING PROBLEMS STARTING

Hi need help, just bought a 2008 leon fr and was driving up motorway and engine revs dropped and car stalled, managed to get car home with the rev counter was going up and down the whole way home, got home and car wont start unless I put my...

2008 Seat Leon 2.0 fr tdi
Posted: Sep 10, 2013
2
replies
Car not starting and then loss of power when driving

I recently bought a 1.6s Seat Leon privately. After a week of so i went to start it, turned the key and all of the electrics came on as usual but other than that complete silence. The starter motor made a clunk the first time i turned the k...

2000 Seat Leon 1.6 s
Posted: May 14, 2013
4
replies
Losing power and slight back fire in 3rd,4th & 5th gear

When I'm accelerating through 3rd,4th and 5th gears. I get a stutter/backfire feeling from the engine and a loss of power for a few seconds until it comes back and goes through gears ok. It happens between 50-70 mph depending on gear proble...

2003 Seat Leon 1.6 s manual petrol
Posted: Feb 3, 2013
4
replies
Engine is hunting

When I am at lights or just sitting in traffic my engine is hunting from 800revs to 1200revs, I have changed the mass metre and oxygen sensor but it did not fix the problem anyone help.

2002 Seat Leon 1.8 20v turbo
Posted: Oct 4, 2012
3
replies
Intermittent loss of power

Intermittent loss of power Its like someone has put a dimmer switch on the power n keeps wacking it off n on. It only does it in 2nd, 3rd or4th gear n only when I'm holding the throttle steady. I had a similar problem on an old Astra which...

2006 Seat Leon 2.0ltr stylance
Posted: Jun 23, 2012
1
reply
Loses power when reaches 70mph

My car loses power when reaching 70mph i have turn the ignition on and off.I have been told it could be the turbo or the air flow meter any help would be appreciated.

2006 Seat Leon 2.0 tdi
Posted: Feb 10, 2012
1
reply
Not starting

Hi, I parked my car in fine working order a couple of weeks ago and a week later I tried to start it and it wouldn't turn up. There was nothing happening when I tried to turn it on, no sound, no noise. The lights on the dash were still c...

2001 Seat Leon 1.9 TDI SE (110 BHP)
Posted: Feb 10, 2012
1
reply
Dashboard light

upon turning off the ignition and exiting the car and locking it the dashboard dials remain on,this may drain the battery,maybe a earthing problem ?

2001 Seat Leon 1.4se
Posted: Nov 15, 2011
2
replies
Tick over hunting

when my car is ticking over it seems to be hunting the rev counter flutters

2001 Seat Leon s
Posted: May 30, 2011
2
replies
Buzzing/humming sound

after opening the car with the key fob and then opening the door I hear a "buzzing" / "humming" sound which appears to be coming from the drivers side door. This continues for a few seconds. After getting in the car and starting the ignitio...

2006 Seat Leon
Posted: May 18, 2011
1
reply
Flat battery or charging problem

Battery was very flat this morning. Jump started the car and drove 35 miles to work without a problem. Finished work and the same story. Push started the car & drove home. As soon as I got home I stopped the engine then turned on the igniti...

2001 Seat Leon 1.6 petrol
Posted: May 16, 2011
2
replies
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