2025 Suzuki Swift Manual Performance Issues

[sleroux17]

I recently bought the new 2025 Suzuki Swift GLX Manual and have noticed some performance issues:

Occasional power loss in certain gears, especially when warm.

Inconsistent acceleration—hesitation or surging at times.
Fuel economy is lower than expected despite normal driving habits.

These issues happen randomly, regardless of driving conditions. I’m wondering if anyone else has experienced something similar? Possible causes could be the MAF sensor, ignition coils, or air intake leaks.

According to Suzuki they see no physical or software issues.

Would love to hear if others have faced this and what solutions worked!

Thanks!

 

[epah]

Engine is the problem, it is a missing a Turbo. Get rid of that swift and buy a real car with a Turbo connected to the engine.

 

[Lupus]

I recently bought the new 2025 Suzuki Swift GLX Manual and have noticed some performance issues:

Occasional power loss in certain gears, especially when warm.

Inconsistent acceleration—hesitation or surging at times.
Fuel economy is lower than expected despite normal driving habits.

These issues happen randomly, regardless of driving conditions. I’m wondering if anyone else has experienced something similar? Possible causes could be the MAF sensor, ignition coils, or air intake leaks.

According to Suzuki they see no physical or software issues.

Would love to hear if others have faced this and what solutions worked!

Thanks!

Welcome to a 1.2l 3 cylinder motor. The reason the fuel consumption is higher is cause you're using your gears more, trying to keep the performance up.

 

[HAL 9000]

Are you inland or at the coast - and what grade of fuel are you using - 93 or 95?

 

[UrBaN963]

Nah, the issues he's describing aren't related to the specs of the engine. Definitely sounds like a sensor issue to me. Do you have an OBD scanner, or access to one?

 

[sleroux17]

Welcome to a 1.2l 3 cylinder motor. The reason the fuel consumption is higher is cause you're using your gears more, trying to keep the performance up.

Thanks for the reply

 

[sleroux17]

Are you inland or at the coast - and what grade of fuel are you using - 93 or 95?

95 as it is preferred. I am also inland.

 

[sleroux17]

Nah, the issues he's describing aren't related to the specs of the engine. Definitely sounds like a sensor issue to me. Do you have an OBD scanner, or access to one?

Had access to one, but could not pick it up. The issue that we are having is, the technician confirmed the feeling/issue and it happens atleast once a day. Hence why I am thinking it is a sensor issue or ecu issue as well.

 

[UrBaN963]

It's a brand new car, make a stink.

 

[Lupus]

It's a brand new car, make a stink.

This though also drive others just to confirm it isn't just the car itself.

 

[Lupus]

Thanks for the reply

Always a pleasure but really make a big stink, cause if you're worried they should be looking. It is new

 

[qscwbt]

Put the car on a dyno and check if the power is less than claimed. Just keep in mind the dyno is normally wheel kw and the manufacture will use flywheel kw . Flywheel will be a higher number.

• Engine: 1.2-liter 3-cylinder
• Power: 60kW @ 5700 rpm
• Torque: 112Nm @ 4300 rpm
• Transmission: CVT
• Fuel Type: Petrol
• Fuel Consumption: Around 4.9L per 100km
• Top Speed: 165 km/h

This makes about the same KW as my 1972 vw beetle

 

[qscwbt]

it's a brand new car just take it back. Let tech drive with and show issue.

 

[sleroux17]

Put the car on a dyno and check if the power is less than claimed. Just keep in mind the dyno is normally wheel kw and the manufacture will use flywheel kw . Flywheel will be a higher number.

• Engine: 1.2-liter 3-cylinder
• Power: 60kW @ 5700 rpm
• Torque: 112Nm @ 4300 rpm
• Transmission: CVT
• Fuel Type: Petrol
• Fuel Consumption: Around 4.9L per 100km
• Top Speed: 165 km/h

This makes about the same KW as my 1972 vw beetle

Reading this, it actually sounds like a joke comparing it to your 1972 beetle.

 

[Lupus]

Put the car on a dyno and check if the power is less than claimed. Just keep in mind the dyno is normally wheel kw and the manufacture will use flywheel kw . Flywheel will be a higher number.

• Engine: 1.2-liter 3-cylinder
• Power: 60kW @ 5700 rpm
• Torque: 112Nm @ 4300 rpm
• Transmission: CVT
• Fuel Type: Petrol
• Fuel Consumption: Around 4.9L per 100km
• Top Speed: 165 km/h

This makes about the same KW as my 1972 vw beetle

Nope you're thinking of HP vs KW
A 1972 VW Beetle typically had a 1.6-liter engine producing around 48 horsepower (36kw)
But even then doesn't make it

 

[sleroux17]

Reading this, it actually sounds like a joke comparing it to your 1972 beetle.

Will

Always a pleasure but really make a big stink, cause if you're worried they should be looking. It is new

Will take it for a second opinion if the issue still persists and see if they can find anything. Like someone also said, test demo models. If not, CCMA next if they can figure out whats wrong.

 

[epah]

Will

Will take it for a second opinion if the issue still persists and see if they can find anything. Like someone also said, test demo models. If not, CCMA next if they can figure out whats wrong.

CCMA?

 

[sleroux17]

Nope you're thinking of HP vs KW
A 1972 VW Beetle typically had a 1.6-liter engine producing around 48 horsepower (36kw)
But even then doesn't make it

Got it. Will go test demo models and get second opinions as well if it persists. According to the tech theres nothing physically or software related wrong. But they could not provide any test.

 

[Lupus]

Will

Will take it for a second opinion if the issue still persists and see if they can find anything. Like someone also said, test demo models. If not, CCMA next if they can figure out whats wrong.

You mean CPA CCMA is for employment issues

 

[sleroux17]

CCMA?

My bad, CPA.