This page lists 45 cooling system parts for the 2018 Audi A1, across 10 part types, covering both the 1.4L L4 Turbocharged and the 1.8L L4 Turbocharged. Every part shows its brand, manufacturer part number and fitment notes.
On the 2018 Audi A1, the cooling system system keeps operating temperature in the narrow band the engine was designed for, from radiator and water pump to thermostat and hoses. Most of the listed parts are Coolant / Antifreeze (14 parts), Water Pump (10 parts) and Radiator (6 parts). The other 7 part types cover the remaining 15 parts.
The 2018 Audi A1 was sold with both the 1.4L L4 Turbocharged and the 1.8L L4 Turbocharged. 15 parts fit every engine; the other 30 are engine-specific. Each part shows which engine(s) it fits.
The most listed brands for 2018 Audi A1 cooling system parts are NISSENS (9 parts), PRESTONE (5 parts) and MARELLI (5 parts), plus 13 more brands. Quality grades include Standard Replacement, Economy and Premium.
7 parts on this 2018 Audi A1 page carry a "Popular" badge — the source catalog's flag for options frequently chosen for this vehicle — including FVP MV5050GAL (Coolant / Antifreeze) and NISSENS 640012 (Radiator). Click any part number to see every vehicle that part fits.
Coolant / Antifreeze
Compatible With All Colors
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PRESTONE Fits: all 2018 A1 engines | AF3055 | 🇲🇽 MX | Prime YellowAll Vehicles | View on Amazon |
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| FVP Popular Fits: all 2018 A1 engines | MV5050GAL | 🇲🇽 MX | Extended LifeAll Makes / All Models | View on Amazon |
| PRESTONE Popular Fits: all 2018 A1 engines | AF3100 | 🇲🇽 MX | Prime Yellow - All VehiclesExtended Life | View on Amazon |
| PEAK Fits: all 2018 A1 engines | BQA1GAL | 🇲🇽 MX | Blue Mountain Long LifeAll Vehicle | View on Amazon |
| VALVOLINE Fits: all 2018 A1 engines | 719009 | 🇲🇽 MX | Multi-Vehicle Yellow1 Gallon | View on Amazon |
Heavy Duty
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| VALVOLINE Fits: all 2018 A1 engines | 846439 | 🇲🇽 MX | HD Nitrite Free Extended Life Yellow1 Gallon | View on Amazon |
Premium
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PRESTONE Popular Fits: all 2018 A1 engines | AF2100 | 🇲🇽 MX | All Vehicles10yr/300k mi | View on Amazon |
| PEAK Fits: all 2018 A1 engines | PKP1GAL | 🇲🇽 MX | All Vehicles Antifreeze1 Gallon | View on Amazon |
| PEAK Fits: all 2018 A1 engines | PXA1GAL | 🇲🇽 MX | 1 GallonGlobal Lifetime | View on Amazon |
| PRESTONE Fits: all 2018 A1 engines | AF6510 | 🇲🇽 MX | MAX European Violet1 Gallon | View on Amazon |
| PRESTONE Fits: all 2018 A1 engines | AFMAX | 🇲🇽 MX | Max Universal1 Gallon | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| AISIN Fits: all 2018 A1 engines | ACE010 | 🇲🇽 MX | VioletSi-OAT | View on Amazon |
| PEAK Fits: all 2018 A1 engines | PEV1GAL | 🇲🇽 MX | OET European Extended Life Violet1 Gallon | View on Amazon |
| VALVOLINE Fits: all 2018 A1 engines | 861399 | 🇲🇽 MX | G40 Pink1 Gallon | View on Amazon |
This table covers the engine coolants and antifreeze formulations specified for this cooling system. Typical signs include a rising temperature gauge, rusty or sludged coolant, or a heater that blows cold. Use the chemistry named in the notes. Mixing silicate, OAT and HOAT formulas can gel in the radiator.
14 Coolant / Antifreeze parts for the 2018 Audi A1 come from 5 brands — PRESTONE, PEAK, VALVOLINE and 2 other brands. The "Popular" part is FVP MV5050GAL. Every part fits both the 1.4L L4 Turbocharged and the 1.8L L4 Turbocharged.
In the Compatible With All Colors grade, PRESTONE supplies 1 part: grouped under the catalog's "Compatible With All Colors" designation — the notes column spells out what sets them apart. A representative part number is PRESTONE AF3055.
The Economy section lists 4 options from FVP, PRESTONE, PEAK and 1 other brand — the catalog's value-priced group. FVP MV5050GAL is listed in this group.
In the Heavy Duty grade, VALVOLINE supplies 1 part: rated for severe service. A representative part number is VALVOLINE 846439.
In the Premium grade, PRESTONE and PEAK supply 5 parts: a step above OE specification in materials, tolerances or warranty terms. A representative part number is PRESTONE AF2100.
In the Standard Replacement grade, AISIN, PEAK and VALVOLINE supply 3 parts: built to original-equipment specification. A representative part number is AISIN ACE010.
Coolant Reservoir
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DORMAN Fits: 1.8L L4 Turbocharged | 603640 | 🇲🇽 MX | View on Amazon | |
| GPD Fits: 1.8L L4 Turbocharged | 2411139 | 🇲🇽 MX | View on Amazon | |
| LARES Fits: 1.8L L4 Turbocharged | 37916 | 🇲🇽 MX | Includes Cap | View on Amazon |
This table covers the overflow / expansion tanks that hold extra coolant.
3 Coolant Reservoir parts are listed for the 2018 Audi A1, from DORMAN, GPD and LARES.
Listed part numbers: DORMAN 603640, GPD 2411139 and LARES 37916.
Intercooler
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DORMAN Fits: 1.4L L4 Turbocharged | 918990 | 🇲🇽 MX | View on Amazon |
This table covers the intercoolers that cool turbo or supercharger charge air.
This group shows a single part: DORMAN 918990.
Radiator
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| NISSENS Popular Fits: 1.4L L4 Turbocharged | 640012 | 🇲🇽 MX | Manual Transmissionwithout Oil Cooler | View on Amazon |
| NISSENS Fits: 1.4L L4 Turbocharged | 606723 | 🇲🇽 MX | Brazed cooling fins | View on Amazon |
| NISSENS Fits: 1.4L L4 Turbocharged | 606910 | 🇲🇽 MX | Brazed cooling fins | View on Amazon |
| NISSENS Fits: 1.4L L4 Turbocharged | 606911 | 🇲🇽 MX | Brazed cooling fins | View on Amazon |
| NISSENS Fits: 1.4L L4 Turbocharged | 65331 | 🇲🇽 MX | Brazed cooling fins | View on Amazon |
| NISSENS Fits: 1.8L L4 Turbocharged | 606720 | 🇲🇽 MX | Brazed cooling fins | View on Amazon |
This table covers the radiators that dump engine heat to airflow through the core. Typical signs include overheating in traffic, a wet core, or coolant that disappears with no puddle. Replace the cap if it cannot hold the rated pressure, and bleed the system after the swap.
6 Radiator parts for the 2018 Audi A1 come from NISSENS. The "Popular" part is NISSENS 640012.
This group includes NISSENS 640012, NISSENS 606723 and NISSENS 606910 and the remaining parts above.
Radiator Fan Assembly
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| NISSENS Popular Fits: 1.8L L4 Turbocharged | 85643 | 🇲🇽 MX | 291mm distance between mounting tabswith Radiator Fan Shroud | View on Amazon |
| MARELLI Fits: 1.8L L4 Turbocharged | MTC721AX | 🇲🇽 MX | View on Amazon | |
| MARELLI Fits: 1.8L L4 Turbocharged | MTC724AX | 🇲🇽 MX | View on Amazon | |
| NISSENS Fits: 1.8L L4 Turbocharged | 85733 | 🇲🇽 MX | Rightwithout Radiator Fan Shroud | View on Amazon |
| NISSENS Fits: 1.8L L4 Turbocharged | 85644 | 🇲🇽 MX | Right251mm distance between mounting tabs | View on Amazon |
This table covers the fan assemblies (and clutches, where listed) that pull air through the radiator.
5 Radiator Fan Assembly parts are listed for the 2018 Audi A1, from NISSENS and MARELLI. NISSENS 85643 carries the "Popular" badge.
This group includes NISSENS 85643, MARELLI MTC721AX and MARELLI MTC724AX and the remaining parts above.
Temperature Sender / Sensor
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MARELLI Fits: all 2018 A1 engines | SPA196 | 🇲🇽 MX | View on Amazon |
This table covers the senders that report coolant temperature to the gauge or ECU. Typical signs include a gauge that sits on empty or overheat, or a lamp that does not match what the engine is doing. Rule out the cluster and the wiring before replacing the sender.
This group shows a single part: MARELLI SPA196.
Thermostat
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MARELLI Fits: 1.4L L4 Turbocharged | TE0408 | 🇲🇽 MX | View on Amazon | |
| MARELLI Fits: 1.4L L4 Turbocharged | TE0509 | 🇲🇽 MX | View on Amazon |
This table covers the thermostats that open the coolant circuit at the specified temperature. Typical signs include slow warm-up, a gauge that climbs in traffic, or heat that never quite arrives. Replace the housing gasket with the thermostat and bleed the system so a trapped air pocket does not cook the new part.
MARELLI supplies both parts for the 2018 Audi A1.
This group includes MARELLI TE0408 and MARELLI TE0509.
Thermostat / Thermostat Housing / Water Outlet Seal
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| AJUSA Fits: 1.8L L4 Turbocharged | 16502300 | 🇲🇽 MX | View on Amazon | |
| ELRING Fits: 1.8L L4 Turbocharged | 453710 | 🇲🇽 MX | Engine Side | View on Amazon |
This table covers the seals at the thermostat housing and water outlet. Typical signs include a wet housing, a drip after sitting, or fluid flung off a rotating shaft. Fix the surface the seal rides on. A new seal on a grooved shaft will leak again.
2 Thermostat / Thermostat Housing / Water Outlet Seal parts for the 2018 Audi A1 come from 2 brands — AJUSA and ELRING.
Part numbers include AJUSA 16502300 and ELRING 453710.
Thermostat Housing / Water Outlet
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOTORAD Fits: 1.4L L4 Turbocharged | CH2074 | 🇲🇽 MX | Thermostat Housing | View on Amazon |
This table covers the housings and outlets the thermostat sits in.
One part is listed for the 2018 Audi A1 — MOTORAD CH2074.
Water Pump
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| FVP Popular Fits: 1.8L L4 Turbocharged | US8124 | 🇲🇽 MX | View on Amazon | |
| US MOTOR WORKS Popular Fits: 1.8L L4 Turbocharged | US8124 | 🇲🇽 MX | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MOTORAD Fits: 1.8L L4 Turbocharged | 1205235 | 🇲🇽 MX | Includes Thermostat, Housing, Water Pump, Seals and Bolts | View on Amazon |
| PIERBURG Fits: 1.8L L4 Turbocharged | 707152290 | 🇲🇽 MX | Includes GasketMechanical | View on Amazon |
| PIERBURG Fits: 1.8L L4 Turbocharged | 704071710 | 🇲🇽 MX | Electric | View on Amazon |
| PIERBURG Fits: 1.8L L4 Turbocharged | 710103030 | 🇲🇽 MX | Electric | View on Amazon |
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| FVP Fits: 1.4L L4 Turbocharged | 1809130 | 🇲🇽 MX | Intercoolerwith Mounting Bracket | View on Amazon |
| GMB Fits: 1.4L L4 Turbocharged | 1809130 | 🇲🇽 MX | Intercoolerwith Mounting Bracket | View on Amazon |
| GMB Fits: 1.4L L4 Turbocharged | 1809240 | 🇲🇽 MX | Intercoolerwithout Mounting Bracket | View on Amazon |
| PIERBURG Fits: 1.4L L4 Turbocharged | 707152100 | 🇲🇽 MX | Includes Thermostat, Coolant Regulator, Gasket, SealMechanical | View on Amazon |
This table covers the pumps that circulate coolant through the block and radiator. Typical signs include coolant at the weep hole, pulley play, or a growl from the front of the engine. Replace the thermostat and refill with the specified coolant whenever the pump comes off.
10 Water Pump parts are listed for the 2018 Audi A1, from PIERBURG, FVP, GMB and 2 other brands. FVP US8124 carries the "Popular" badge.
Economy: 2 parts, from FVP and US MOTOR WORKS. A representative part number is FVP US8124.
The Standard Replacement section: 4 options from PIERBURG and MOTORAD. MOTORAD 1205235 is listed in this group.
4 ungrouped parts are not assigned to a grade, with the same engine-level match.
Buying Cooling System Parts for a 2018 Audi A1
On this vehicle, the cooling system system keeps operating temperature in the narrow band the engine was designed for, from radiator and water pump to thermostat and hoses.
- Match the engine first. Some cooling system parts fit every engine; others are engine-specific. Each row shows which engine(s) it fits.
- Read the notes on each row for position, trim and spec qualifiers before you order.
- Where labor overlaps, replace the thermostat and refill with fresh coolant whenever you change a water pump or radiator; original hoses on an older vehicle are on borrowed time.
- Cross-reference the manufacturer part number against your old part or a service-manual listing.
Start with the largest groups on this page: Coolant / Antifreeze and Water Pump .
Frequently Asked Questions
How many cooling system parts fit the 2018 Audi A1?
Our catalog currently lists 45 cooling system parts for the 2018 Audi A1 across 10 subcategories and 16 brands, covering both the 1.4L L4 Turbocharged and the 1.8L L4 Turbocharged. Each part is matched to the engine(s) it fits.
Do cooling system parts differ between 2018 Audi A1 engines?
Some do. 15 parts fit every engine; the other 30 are engine-specific. Each row (and the filter at the top) shows which. If you're unsure which engine you have, check the emissions label under the hood or the 8th character of your VIN.
What are the signs of cooling system problems on a 2018 Audi A1?
Common symptoms include a rising temperature gauge in traffic, sweet-smelling steam, crusty deposits around hose clamps, or a heater that blows cold. If you notice any of these, identify the affected subcategory above and cross-reference the part numbers listed.
What should I replace at the same time?
Where labor overlaps, replace the thermostat and refill with fresh coolant whenever you change a water pump or radiator; original hoses on an older vehicle are on borrowed time.
What do the market flags (US, CA, MX) on each part mean?
They show the market for which the manufacturer published application data for that part — where the vehicle was first sold, not where the part was made. If your 2018 Audi A1 was originally sold in the US, the safest choice is a part marked for the US market.
How do I make sure a part fits my 2018 Audi A1?
First match the engine — each row shows which engine(s) the part fits. Then replace coolant with the exact specification the manufacturer calls for — mixing chemistries can gel and block small passages. The notes column carries position and trim qualifiers where they apply.
Other Parts for the 2018 Audi A1
Cooling System Parts for Other Audi A1 Years
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