This page lists 32 steering parts for the 2018 Audi A3, across 5 part types, covering all 4 engine options (1.4L L4 ELECTRIC/GAS Turbocharged, 1.4L L4 Turbocharged, 1.8L L4 Turbocharged and 2.0L L4 Turbocharged). Every part shows its brand, manufacturer part number and fitment notes.
On the 2018 Audi A3, the steering system connects driver to road through the rack, pump, tie rods, and column components. Most of the listed parts are Tie Rod End (25 parts), O-Ring (3 parts) and Knuckle (2 parts). The other 2 part types cover the remaining 2 parts.
The 2018 Audi A3 was sold with 4 engines. Every part on this page is engine-specific. Each part shows which engine(s) it fits.
The most listed brands for 2018 Audi A3 steering parts are MEVOTECH (6 parts), BECK/ARNLEY (5 parts) and SKP (4 parts), plus 8 more brands. Quality grades include Economy and Daily Driver.
5 parts on this 2018 Audi A3 page carry a "Popular" badge — the source catalog's flag for options frequently chosen for this vehicle — including MEVOTECH MS10624 (Tie Rod End) and MEVOTECH MS10625 (Tie Rod End). Click any part number to see every vehicle that part fits.
Knuckle
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SKP Fits: 1.8L L4 Turbocharged | SK697331 | 🇲🇽 MX | Front Right | View on Amazon |
| SKP Fits: 1.8L L4 Turbocharged | SK697330 | 🇲🇽 MX | Front Left | View on Amazon |
This table covers the steering knuckles that carry the hub, caliper and ball joints.
2 Knuckle parts for the 2018 Audi A3 come from SKP.
Listed part numbers: SKP SK697331 and SKP SK697330.
O-Ring
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ELRING Fits: 1.8L L4 Turbocharged | 939710 | 🇲🇽 MX | Inner Diameter [MM]: 28.3Material: Epdm ethylene propylene diene Monomer (M-class) rubber | View on Amazon |
| ELRING Fits: 1.8L L4 Turbocharged | 644190 | 🇲🇽 MX | Attraction | View on Amazon |
| ELRING Fits: 1.8L L4 Turbocharged | 224450 | 🇲🇽 MX | Attraction | View on Amazon |
This table covers the O-rings that seal this joint. Typical signs include a seep at a fitting or a housing that weeps after a service. Lube the new O-ring with the fluid it will see, and do not roll it into the groove.
ELRING supplies the 3 O-Ring parts for the 2018 Audi A3.
This group includes ELRING 939710, ELRING 644190 and ELRING 224450.
Rack and Pinion
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| TERREPOWER Fits: 1.8L L4 Turbocharged | 2120117E | 🇲🇽 MX | Remanufactured | View on Amazon |
This table covers the steering gear assemblies that turn the tie rods. Typical signs include fluid at a torn boot, a growl when you turn, or play that the inner tie rods do not explain. Flush the old power-steering fluid with the rack — grit in the old fluid is the usual cause of a repeat leak.
This group shows a single part: TERREPOWER 2120117E.
Rack and Pinion Bellow
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| BECK/ARNLEY Fits: 1.8L L4 Turbocharged | 1032912 | 🇲🇽 MX | 165mm Length | View on Amazon |
This table covers the rubber boots that seal the inner tie-rod joints on the rack.
One part is listed for the 2018 Audi A3 — BECK/ARNLEY 1032912.
Tie Rod End
Daily Driver
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MEVOTECH Popular Fits: 1.8L L4 Turbocharged | MS10624 | 🇲🇽 MX | SupremeIncludes Hardware | View on Amazon |
| MEVOTECH Popular Fits: 1.8L L4 Turbocharged | MS10625 | 🇲🇽 MX | SupremeIncludes Hardware | View on Amazon |
| MOOG Popular Fits: 1.8L L4 Turbocharged | EV80665 | 🇲🇽 MX | Design Allows Easier Installation | View on Amazon |
| ACDELCO Fits: 1.8L L4 Turbocharged | 45A1089 | 🇺🇸 US 🇨🇦 CA | Gold | View on Amazon |
| ACDELCO Fits: 1.8L L4 Turbocharged | 45A1090 | 🇺🇸 US 🇨🇦 CA | Gold | View on Amazon |
| MEVOTECH Fits: 1.8L L4 Turbocharged | MS10711 | 🇲🇽 MX | SupremeIncludes Hardware | View on Amazon |
| MOOG Fits: 1.8L L4 Turbocharged | ES80666 | 🇲🇽 MX | Design Allows Easier Installation | View on Amazon |
| MOOG Fits: 1.8L L4 Turbocharged | ES80667 | 🇲🇽 MX | Design Allows Easier Installation | View on Amazon |
| SUSPENSIA Fits: 1.8L L4 Turbocharged | X52TE4369 | 🇲🇽 MX | Front Right Outer | View on Amazon |
| SUSPENSIA Fits: 1.8L L4 Turbocharged | X52TE4370 | 🇲🇽 MX | Front Left Outer | View on Amazon |
| SUSPENSIA Fits: 1.8L L4 Turbocharged | X52TR4371 | 🇲🇽 MX | Front Inner | View on Amazon |
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SKP Popular Fits: 1.8L L4 Turbocharged | SES80666 | 🇲🇽 MX | Front Left Outer | View on Amazon |
| SKP Popular Fits: 1.8L L4 Turbocharged | SES80667 | 🇲🇽 MX | Front Right Outer | View on Amazon |
| BECK/ARNLEY Fits: 1.8L L4 Turbocharged | 1015850 | 🇲🇽 MX | Front Left Outer | View on Amazon |
| BECK/ARNLEY Fits: 1.8L L4 Turbocharged | 1015851 | 🇲🇽 MX | Front Right Outer | View on Amazon |
| BECK/ARNLEY Fits: 1.8L L4 Turbocharged | 1015864 | 🇲🇽 MX | Front Inner | View on Amazon |
| BECK/ARNLEY Fits: 1.8L L4 Turbocharged | 1017778 | 🇲🇽 MX | Tie Rod End & Boot Kit | View on Amazon |
| DORMAN Fits: 1.8L L4 Turbocharged | 543401 | 🇲🇽 MX | Front Inner | View on Amazon |
| DORMAN Fits: 1.8L L4 Turbocharged | 544097 | 🇲🇽 MX | Front Left Outer | View on Amazon |
| DORMAN Fits: 1.8L L4 Turbocharged | 544098 | 🇲🇽 MX | Front Right Outer | View on Amazon |
| FVP Fits: 1.8L L4 Turbocharged | TI43125 | 🇲🇽 MX | Front Inner | View on Amazon |
| MEVOTECH Fits: 1.8L L4 Turbocharged | GS10624 | 🇲🇽 MX | Original Grade | View on Amazon |
| MEVOTECH Fits: 1.8L L4 Turbocharged | GS10625 | 🇲🇽 MX | Original Grade | View on Amazon |
| MEVOTECH Fits: 1.8L L4 Turbocharged | GS10711 | 🇲🇽 MX | Original Grade | View on Amazon |
| QUICK STEER Fits: 1.8L L4 Turbocharged | EV80665 | 🇲🇽 MX | Front Inner | View on Amazon |
This table covers the inner and outer tie-rod ends that steer each front knuckle. Typical signs include play on center, a feathered front tire, or a boot that has split and packed with grit. Replace inner and outer ends together on a high-mileage axle, then get an alignment.
25 Tie Rod End parts are listed for the 2018 Audi A3, from MEVOTECH, BECK/ARNLEY, MOOG and 6 other brands. MEVOTECH MS10624 carries the "Popular" badge.
The Daily Driver section lists 11 options from MEVOTECH, MOOG, SUSPENSIA and 1 other brand — grouped for everyday commuting duty. MEVOTECH MS10624 is listed in this group.
In the Economy grade, BECK/ARNLEY, DORMAN, MEVOTECH and 3 other brands supply 14 parts: the catalog's value-priced group. A representative part number is SKP SES80666.
Buying Steering Parts for a 2018 Audi A3
On this vehicle, the steering system connects driver to road through the rack, pump, tie rods, and column components.
- Match the engine first. Every steering part here is 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 inner and outer tie-rod ends together on higher-mileage vehicles, then get an alignment.
- Cross-reference the manufacturer part number against your old part or a service-manual listing.
Start with the largest groups on this page: Tie Rod End and O-Ring .
Frequently Asked Questions
How many steering parts fit the 2018 Audi A3?
Our catalog currently lists 32 steering parts for the 2018 Audi A3 across 5 subcategories and 11 brands, covering all 4 engine options (1.4L L4 ELECTRIC/GAS Turbocharged, 1.4L L4 Turbocharged, 1.8L L4 Turbocharged and 2.0L L4 Turbocharged). Each part is matched to the engine(s) it fits.
Do steering parts differ between 2018 Audi A3 engines?
Yes. Every steering part on this page is engine-specific. Each row shows which engine(s) it fits — use the filter at the top to hide the rest. 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 steering problems on a 2018 Audi A3?
Common symptoms include play or looseness on center, a whine when turning, fluid weeping from rack boots, or uneven tire wear on the front axle. 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 inner and outer tie-rod ends together on higher-mileage vehicles, then get an alignment.
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 A3 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 A3?
First match the engine — each row shows which engine(s) the part fits. Then flush old power-steering fluid when replacing a pump or rack — grit in the old fluid is the number-one cause of repeat failure. The notes column carries position and trim qualifiers where they apply.
Other Parts for the 2018 Audi A3
Steering Parts for Other Audi A3 Years
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Manufacturer names, model designations and part numbers are used for identification and fitment reference only. AutoFactsDB is an independent catalog and is not affiliated with, endorsed by, or sponsored by any vehicle manufacturer displayed on this page.