---
url: https://baterias.com/gb/car-batteries/seat/leon-st-5f8/16-tdi-81-kw-110cv
title: "Batteries SEAT Leon ST 1.6 TDI"
type: engine
language: en-GB
application: "Car Batteries"
brand: "SEAT"
model: "Leon ST"
engine: "1.6 TDI"
compatible_batteries: 6
capacity_ah_range: "60-70"
cca_range: "540-760"
voltage: 12 V
updated: 2026-10-24
source: baterias.com
---

# Batteries SEAT Leon ST 1.6 TDI

**TL;DR — SEAT Leon ST 1.6 TDI:** 60-70 Ah · 540-760 A (CCA) · 12 V · 6 Compatible batteries.

**Quick answer:** Depending on the equipment, your car uses one of these two main batteries. The most common option is AGM 70 Ah (278×175×190 mm): we recommend VARTA A7. Other units use ordinary lead-acid 60 Ah (242×175×190 mm): VARTA D24. Before buying, check the Ah on your current battery's label or measure its length.

**baterias.com** · Engine
**URL:** https://baterias.com/gb/car-batteries/seat/leon-st-5f8/16-tdi-81-kw-110cv

> baterias.com > Car Batteries > SEAT > Leon ST > 1.6 TDI

## Verified selection

- Application: Car Batteries
- Make: SEAT
- Model: Leon ST
- Engine: 1.6 TDI

## Technical specifications

- Capacity (Ah): 60-70 Ah
- Cranking (CCA): 540-760 A
- Voltage: 12 V
- Case size: H5/L2
- Technology: conventional flooded and Start-Stop (EFB/AGM)
- Compatible batteries: 6

## Compatible batteries (6)

| Make | Model | Ref. | Ah | CCA | V | Tech | Dims (LxAxH mm) | Polo | Price | URL |
|---|---|---|---|---|---|---|---|---|---|---|
| VARTA | Start-Stop battery Varta A7 12V 70Ah 760A AGM | A7 | 70 (c20) | 760A | 12 | AGM | 278x175x190 |  | 148.78 EUR | https://baterias.com/gb/battery-varta-a7-agm-12v-70ah-760a |
| VARTA | Car battery Varta D24 12V 60Ah 540A | D24 | 60 (c20) | 540A | 12 | Lead-acid | 242x175x190 |  | 64.95 EUR | https://baterias.com/gb/battery-varta-d24-12v-60ah-540a |
| VARTA | Car battery Varta D15 12V 63Ah 610A | D15 | 63 (c20) | 610A | 12 | Lead-acid | 242x175x190 |  | 81.80 EUR | https://baterias.com/gb/battery-varta-d15-12v-63ah-610a |
| TUDOR | Start-Stop battery Tudor TL600 12V 60Ah 640A EFB | TL600 | 60 (c20) | 640A | 12 | EFB | 242x175x190 |  | 84.70 EUR | https://baterias.com/gb/battery-tudor-tl600-60ah-640a |
| TUDOR | Start-Stop battery Tudor TK720 12V 72Ah 760A AGM | TK720 | 72 (c20) | 760A | 12 | AGM | 278x175x190 |  | 108.60 EUR | https://baterias.com/gb/battery-tudor-tk720-12v-72ah-760a |
| EXIDE | Start-Stop battery Exide EK720 12V 72Ah 760A AGM | EK720 | 72 (c20) | 760A | 12 | AGM | 278x175x190 |  | 108.60 EUR | https://baterias.com/gb/battery-exide-ek720-12v-72ah-760a |

## Frequently asked questions

### Can I install a higher capacity battery in my SEAT Leon ST 1.6 TDI?

Yes, you can install a higher capacity (Ah) battery as long as the physical dimensions fit your SEAT Leon ST 1.6 TDI battery compartment and the positive terminal position matches.

### What battery fits the SEAT Leon St 1.6 TDI?

The SEAT Leon St 1.6 TDI requires a battery with the correct capacity (Ah) and Cold Cranking Amps (CCA) for this engine. Compatible batteries offer 60-70 Ah, 540-760 A (CCA), 12 V, case H5/L2, conventional flooded and Start-Stop (EFB/AGM) technology. Browse the compatible battery list below.

### How many Ah does the SEAT Leon St 1.6 TDI battery need?

The exact Ah rating for the SEAT Leon St 1.6 TDI depends on the vehicle's original electrical consumers. Compatible batteries offer 60-70 Ah, 540-760 A (CCA), 12 V, case H5/L2, conventional flooded and Start-Stop (EFB/AGM) technology. Use our finder for a precise recommendation.

### What type of battery does my car need?

You need the make, model and engine. If your car has Start-Stop (the engine switches off at traffic lights), it needs an EFB or an AGM battery, depending on what it came with: if it has an AGM, fit another AGM; if it has an EFB, another EFB or an AGM. On cars with battery management (BMW, Mercedes, VAG group…), moving from EFB to AGM requires coding the new battery. Without Start-Stop, a conventional battery is fine, or an EFB or AGM if you want a longer life.

### What is the difference between AGM, EFB and standard batteries?

A conventional (lead-acid) battery is for cars without Start-Stop. An EFB is a reinforced conventional battery for basic Start-Stop. An AGM offers the highest performance and is fitted as standard on cars with advanced Start-Stop, regenerative braking or high electrical demand. Replacement rule: an AGM only with another AGM; an EFB with another EFB or an AGM; a conventional battery with any of the three. Never move down in technology.

### How do I find the right battery for my vehicle?

Use the search tool by selecting your vehicle's make and model. Our system automatically filters compatible part numbers verified by our technicians. If you have any questions, contact us via WhatsApp.

### What warranty do the batteries have?

All our batteries come with the legal guarantee provided by consumer law against manufacturing defects. If a battery has a manufacturing defect, it will be replaced at no cost to the user.

### How long does it take for the battery to arrive?

Under normal circumstances, batteries usually arrive within 1 to 2 days of ordering. However, there are some cases where delivery may take a little longer: peak seasons (Black Friday, Christmas, etc.), palletized shipments, occasional stock shortages, etc.

### How long does delivery take?

In mainland Spain delivery takes 24-48 working hours if you order before 6:00 pm (Monday to Friday) and the battery is in stock; mainland Portugal takes 1 to 4 working days, the Balearic Islands 2 to 5 working days and other EU destinations 4 to 7 working days. Batteries are shipped fully charged and ready to install.

### Which battery does my SEAT Leon ST 1.6 TDI need: Start-Stop or conventional?

It depends on the version. If your SEAT Leon ST 1.6 TDI has Start-Stop (the engine switches off by itself at traffic lights) it needs an EFB or AGM battery; if not, a conventional one. To check, look for an "A" or "A-OFF" button near the gear lever, or read the label on your current battery: if it says EFB, AGM or Start-Stop, choose that technology.

## Guides

### How to change the battery of a SEAT Leon ST 1.6 TDI

Generic guide to safely replace the battery of a SEAT Leon ST 1.6 TDI. Estimated time: 15-30 minutes. Typical tools: socket or open-end wrenches (usually 10-13 mm), sometimes Allen or Torx keys depending on the model. Depending on the version, this vehicle uses a conventional or a Start-Stop battery (AGM or EFB). Some versions require the new battery to be registered via OBD and, if you change technology, coded.

1. **Prepare the vehicle** — Park on a flat surface, switch off the engine, remove the key (or disarm keyless systems) and make sure all lights and electrical accessories are off.
2. **Locate the battery** — Open the hood and find the battery. It is usually in the engine bay, but on many modern cars it may be in the trunk, under the passenger seat or under a floor cover. Check the manual if you cannot find it.
3. **Identify terminals and hold-down** — Find the positive terminal (marked «+», red cable, usually with a cover) and the negative (marked «−», black cable). Inspect how the battery is secured: the hold-down can be a lower clamp with a bolt, a threaded rod, a top bracket or a metal frame. Depending on the model you will need 10-13 mm sockets, open-end wrenches, Allen keys or Torx keys.
4. **Disconnect the negative terminal first** — Using the right tool, loosen the negative terminal nut until you can lift the clamp off the post. Move the cable aside and secure it so it cannot touch the battery while you work. This order prevents short circuits.
5. **Disconnect the positive terminal** — Remove the protective cover and loosen the positive clamp the same way. Move the cable aside, keeping it away from any metal part of the vehicle.
6. **Remove the hold-down and lift the battery out** — Undo the bolts, clamps or rods securing the battery. Lift it straight up, keeping it vertical at all times. Batteries are heavy and contain acid: wear gloves and, if possible, use a proper carrying strap.
7. **Install the new battery** — Clean the tray and terminals with a brush if you see corrosion. Place the new battery in the same orientation (positive and negative on the same side as the old one). Fit the hold-down and tighten firmly, without overtightening.
8. **Connect terminals in the correct order** — Connect the positive terminal first and tighten the clamp. Then the negative. This order prevents sparks and shorts. Apply anti-corrosion grease on the posts if you have some. Replace the positive terminal cover.
9. **Verify and, if required, register the battery** — Start the vehicle and check that everything works. On cars with a battery management system (BMS) it is strongly advised to register the new battery with an OBD scanner; otherwise the alternator may not charge it correctly. Re-initialise basic settings (clock, radio, windows) if the vehicle prompts you to.

### How to jump-start a SEAT Leon ST 1.6 TDI with cables

Step-by-step guide to jump-starting the SEAT Leon ST 1.6 TDI using a donor car when the battery is flat. Estimated time: 10-15 minutes. Required: a set of insulated jumper cables with adequate gauge (at least 16 mm²) and a donor vehicle with a charged battery of the same or similar voltage.

1. **Prepare both cars** — Pull the donor car close to your SEAT Leon ST but make sure they don't touch. Switch both engines off, apply handbrakes, remove keys, and turn off lights, radio, HVAC and all electrical accessories. No one should be smoking nearby.
2. **Inspect the flat battery** — If the battery has cracks, bulges, acid leaks or is frozen (after a hard freeze), DO NOT jump-start it — it could explode. Call a professional or replace it outright.
3. **Connect the red (positive) clamp** — One end of the red clamp to the positive terminal (+) of the flat battery in the SEAT Leon ST. The other end to the positive (+) of the donor battery. Make sure the clamps don't touch any other metal part.
4. **Connect the black (negative) clamp carefully** — One end to the negative terminal (−) of the donor battery. The OTHER end NOT to the SEAT Leon ST's negative: connect it to a bare metal part of the engine (a cylinder-head bolt, the alternator bracket, the engine block). This final step avoids sparks near the battery, which can release hydrogen and explode.
5. **Start the donor then the SEAT Leon ST** — Start the donor car and let it idle for 2-3 minutes. Then try to start the SEAT Leon ST. If it doesn't fire, wait 10 seconds and retry. Never hold the starter for more than 5 seconds at a time — it overheats.
6. **Disconnect in reverse order and charge** — With the SEAT Leon ST running, first remove the black clamp from the SEAT Leon ST's engine, then from the donor negative. Then the red clamp from the donor positive and finally from the SEAT Leon ST positive. Keep the SEAT Leon ST running for at least 15-20 minutes (ideally half an hour on the road) so the alternator can recharge the battery.

### Battery care and maintenance for the SEAT Leon ST 1.6 TDI

Six simple routines that extend the life of the SEAT Leon ST 1.6 TDI's battery from 3 to 5+ years. Doable in 15 minutes with a basic multimeter and a brush.

1. **Check the voltage every 6 months** — With a multimeter on DC voltage and the SEAT Leon ST at rest (engine off for at least 2 hours), the terminals should read 12.6-12.8 V. Below 12.4 V it is partially discharged and needs charging or replacement. Engine running, a healthy reading is 13.8-14.7 V (alternator charging).
2. **Clean the terminals if sulphated** — If you see white-greenish powder on the terminals, first disconnect negative, then positive (always in that order). Brush the terminals with a wire brush and neutralise the acid with a mix of 1 tablespoon of baking soda in a glass of water. Dry well and apply anti-corrosion grease or petroleum jelly before reconnecting (positive first, negative second).
3. **Verify the hold-down** — A loose battery vibrates with every bump and can lose up to half its service life. Check every 6 months that the clamp, rod or bracket is tight. Don't overtighten — plastic cases can crack — but keep it firm.
4. **Avoid deep discharges** — A deep discharge (at rest below 12.0 V, or under load below 10.5 V) can cut battery life by up to 50%. Don't leave lights, radio, HVAC or USB chargers on with the engine off. If the SEAT Leon ST will sit unused for more than 2 weeks, connect an intelligent maintenance charger.
5. **Verify the alternator** — A faulty alternator kills healthy batteries. With the engine running and the multimeter on the terminals, voltage should be 13.8-14.7 V. Above 14.8 V overcharges (boils the electrolyte); below 13.5 V undercharges. In either case, have the alternator diagnosed at a workshop.
6. **Maintenance charger for long parking** — If the SEAT Leon ST sits parked for more than 2 weeks, connect an intelligent maintenance charger that supplies just enough current to compensate for parasitic drain (alarm, ECU, clock…). A smart 2-5 A charger costs 30-60 € / $40-80 and pays for itself by saving one battery.

### How to identify the battery polarity of the SEAT Leon ST 1.6 TDI

Knowing your battery polarity (positive on the right or on the left) is the most important step before buying a replacement: connecting it the wrong way can damage the electronics. Estimated time: 2 minutes. Tools: eyes only — no tools required.

1. **Locate the battery** — Open the bonnet of the SEAT Leon ST and find the battery. It is usually a rectangular block with two metal terminals (large screw heads) on top — one red or "+" and one black or "−".
2. **Identify the positive terminal** — The positive terminal (+) typically has a red cap, red sticker or cover, a raised "+" symbol on the casing, and/or a slightly larger diameter (19 mm vs 17 mm of the negative, in standard European batteries).
3. **Face the battery** — Look at the battery from the label side with the terminals near you — the edge with the terminals should face you, not the back.
4. **Determine polarity** — If the positive pole is on the RIGHT → choose a battery marked as "positive right". If it is on the LEFT → choose one marked as "positive left". (If the label of your current or new battery shows codes like 0, 1, 3 or 4: 0 and 4 are positive right; 1 and 3, positive left — 3 and 4 correspond to batteries with terminals on the narrow side.)
5. **Note the reference** — The label on top shows the reference (e.g. "A9", "TK960", "EA900"). Search for the exact model with that reference and the identified polarity — never change polarity without consulting the vehicle manufacturer.

## Other vehicles using this battery

- [FORD MONDEO V Saloon (CD)](https://baterias.com/gb/car-batteries/ford/mondeo-v-saloon-cd)
- [FORD F-150 Crew Cab Pickup](https://baterias.com/gb/car-batteries/ford/f-150-crew-cab-pickup)
- [HYUNDAI i30 (GD)](https://baterias.com/gb/car-batteries/hyundai/i30-gd)
- [MERCEDES-BENZ E-CLASS (W210)](https://baterias.com/gb/car-batteries/mercedes-benz/e-class-w210)
- [PEUGEOT 3008 I MPV (0U_)](https://baterias.com/gb/car-batteries/peugeot/3008-i-mpv-0u)
- [NISSAN QASHQAI II SUV (J11, J11_)](https://baterias.com/gb/car-batteries/nissan/qashqai-ii-suv-j11-j11)
- [AUDI A6 C6 (4F2)](https://baterias.com/gb/car-batteries/audi/a6-c6-4f2)
- [MERCEDES-BENZ V-CLASS (W447)](https://baterias.com/gb/car-batteries/mercedes-benz/v-class-w447)

## Related links

- [Plate search](https://baterias.com/gb/battery-finder-by-plate)
- [HTML version](https://baterias.com/gb/car-batteries/seat/leon-st-5f8/16-tdi-81-kw-110cv)
- [llms.txt](https://baterias.com/gb/llms.txt)
### Other languages

- [ES-ES] [https://baterias.com/baterias-de-coche/seat/leon-st-5f8/16-tdi-81-kw-110cv](https://baterias.com/baterias-de-coche/seat/leon-st-5f8/16-tdi-81-kw-110cv?format=md)
- [EN-GB] [https://baterias.com/gb/car-batteries/seat/leon-st-5f8/16-tdi-81-kw-110cv](https://baterias.com/gb/car-batteries/seat/leon-st-5f8/16-tdi-81-kw-110cv?format=md)
- [PT-PT] [https://baterias.com/pt/baterias-de-carro/seat/leon-st-5f8/16-tdi-81-kw-110cv](https://baterias.com/pt/baterias-de-carro/seat/leon-st-5f8/16-tdi-81-kw-110cv?format=md)
- [FR-FR] [https://baterias.com/fr/batteries-de-voiture/seat/leon-st-5f8/16-tdi-81-kw-110cv](https://baterias.com/fr/batteries-de-voiture/seat/leon-st-5f8/16-tdi-81-kw-110cv?format=md)
- [IT-IT] [https://baterias.com/it/batterie-per-auto/seat/leon-st-5f8/16-tdi-81-kw-110cv](https://baterias.com/it/batterie-per-auto/seat/leon-st-5f8/16-tdi-81-kw-110cv?format=md)
- [DE-DE] [https://baterias.com/de/autobatterien/seat/leon-st-5f8/16-tdi-81-kw-110cv](https://baterias.com/de/autobatterien/seat/leon-st-5f8/16-tdi-81-kw-110cv?format=md)