Real-world fuel economy

SEAT Leon Real MPG: what owners actually get

The official figure is what a SEAT Leon managed in a laboratory. These are the figures owners report from the road, engine by engine, for every generation we hold. Add your own at the bottom and the averages get better for the next buyer.

47.3mpg
Real-world average, all engines
85%
of the official combined figure
2274
Range reported by owners (mpg)
1,956
Owner submissions

SEAT Leon

2005–2012 · real average 44.0 mpg · owners report 22.0–65.0 mpg · 745 submissions

EngineOfficial (NEDC)Official (WLTP)Real MPG% of officialOwners report
1.2 TSI52.339.676%32.0–49.4
1.444.845.8102%45.6–46.0
1.4 TSI44.1–45.641.592%30.6–50.0
1.4 TSI FR45.633.674%30.0–38.7
1.637.2–39.234.189%28.0–43.4
1.6 TDI67.349.674%38.0–61.0
1.6 TDI DSG60.145.576%35.0–51.1
1.6 TDI DSG Automatic60.151.285%42.0–60.0
1.9 TDI56.550.088%38.0–62.0
1.9 TDI 9056.554.697%49.0–58.0
1.9 TDI Ecomotive62.852.383%43.0–65.0
2.0 FSI34.431.592%30.0–33.0
2.0 TDI50.4–55.446.087%36.9–56.0
2.0 TDI DSG49.6–50.444.789%36.9–54.0
2.0 TDI FR58.946.379%36.0–56.0
2.0 TDI FR DSG53.344.483%34.0–50.5
2.0 TDI FR+55.446.884%39.0–51.0
2.0 TSI38.732.283%28.0–37.0
2.0 TSI Cupra34.0–34.928.282%24.1–34.0
2.0 TSI DSG37.741.7111%32.0–50.4
2.0 TSI FR38.730.880%25.0–37.0
2.0 TSI FR DSG37.727.874%
2.0 TSI FR+38.734.389%30.0–41.0

SEAT Leon

2012–2020 · real average 49.3 mpg · owners report 28.0–74.0 mpg · 1,183 submissions

EngineOfficial (NEDC)Official (WLTP)Real MPG% of officialOwners report
1.0 TSI 11557.6–64.246.176%36.5–51.0
1.0 TSI 115 DSG Ecomotive64.242.967%42.8–43.0
1.0 TSI 115 Ecomotive64.251.881%48.6–55.0
1.2 TSI 10557.647.783%37.0–56.0
1.2 TSI 105 DSG57.647.082%40.3–56.3
1.2 TSI 11056.5–57.646.582%35.0–54.0
1.2 TSI 110 DSG56.5–57.646.481%35.0–55.0
1.2 TSI 110 Ecomotive56.551.190%46.0–57.4
1.4 EcoTSI 12554.342.879%34.5–48.0
1.4 EcoTSI 15057.645.779%35.0–56.6
1.4 EcoTSI 150 DSG57.646.581%35.0–56.0
1.4 TSI 12544.4–54.344.390%34.0–56.0
1.4 TSI 14053.346.187%35.4–57.0
1.5 TSI 15053.3–55.447.143.693%*34.0–52.0
1.5 TSI 150 DSG54.3–55.443.542.898%*33.0–48.9
1.6 TDI 10574.358.979%45.0–73.0
1.6 TDI 105 DSG72.457.179%47.0–69.0
1.6 TDI 11068.9–78.560.482%52.7–70.0
1.6 TDI 110 DSG70.6–72.455.978%47.9–66.5
1.6 TDI 110 Ecomotive70.6–78.562.984%48.1–74.0
1.6 TDI 11565.7–70.652.277%42.0–65.0
1.6 TDI 115 DSG67.3–70.652.075%44.0–60.0
1.8 TSI47.139.183%32.0–47.0
1.8 TSI DSG48.736.174%28.3–45.0
2.0 TDI 15064.2–65.754.3–56.553.496%*41.0–64.0
2.0 TDI 150 DSG62.8–64.254.3–57.649.388%*38.0–60.0
2.0 TDI 18462.8–65.750.278%38.0–61.0
2.0 TDI 184 DSG60.1–62.846.275%36.0–56.7
2.0 TSI 190 DSG45.638.785%31.0–47.2

SEAT Leon

2020–on · real average 50.7 mpg · owners report 38.0–68.0 mpg · 28 submissions

EngineOfficial (NEDC)Official (WLTP)Real MPG% of officialOwners report
1.0 eTSI50.448.596%*45.0–52.0
1.0 TSI51.4–52.343.484%*38.0–49.0
1.0 TSI MHEV DSG51.4
1.5 eTSI 15047.9–48.747.899%*39.0–59.5
1.5 TSI 13051.4–52.350.998%*46.2–56.4
1.5 TSI 15047.9–48.7
1.5 TSI 150 MHEV DSG49.648.798%*39.0–58.0
1.6 TDI67.3
2.0 TDI 11565.761.293%*57.3–65.0
2.0 TDI 15062.8–64.2
2.0 TSI 190 DSG42.2
2.0 TSI DSG 4Drive42.2

All figures in miles per gallon (UK). “Owners report” is the spread of individual submissions for that engine. * Measured against the WLTP figure rather than NEDC.

Add your SEAT Leon Real MPG

What does yours actually do? Read it off the trip computer over a full tank or work it out from litres and miles. No postcode, no sign-up. The more people add, the better the averages get, and this page stays free.

SEAT Leon fuel economy questions

What is the real-world MPG of a SEAT Leon?

Owners report an average of 47.3 mpg across all SEAT Leon engines with data, about 85% of the official combined figure. The engine tables on this page give the figure for each engine and generation.

Why is the SEAT Leon real MPG lower than the official figure?

Official figures come from a laboratory test cycle, not the road. Cold starts, short trips, hills, load, tyres and driving style all cost fuel the test does not see. A gap of 10 to 30 per cent is normal; a much bigger gap on one engine usually points at a fault, a heavy right foot, or a diesel that never gets warm.

Where did the Honest John SEAT Leon Real MPG page go?

Honest John closed in August 2026 and its Real MPG section went with it. This page is where the SEAT Leon figures now live: rebuilt from the archived Honest John dataset, with the official figures kept alongside, and reopened for new submissions. CarAdCheck is not affiliated with Honest John or Volkswagen Financial Services.

Where the SEAT Leon figures come from

If you used the Honest John Real MPG section before the site closed in 2026, this is where the SEAT Leon figures now live. The owner-reported averages above were rebuilt from the archived Honest John dataset (archived page, 2026-08) alongside the official NEDC and WLTP figures and new submissions from CarAdCheck readers, and the section is open so they keep improving. Real-world figures also feed the running-cost estimate in our free advert check.

CarAdCheck is not affiliated with Honest John or Volkswagen Financial Services. How we rebuilt Real MPG.

Other SEAT models

Before you go and see it

Fuel economy is one line on the SEAT Leon running-cost sheet. These guides cover the checks that stop you buying the wrong one.

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