OEM Turbocharger Oil Feed Pipe (03G145736E) for Audi A1, A3, Q3, and TT 2.0 TDI

Description

Check part compatibility by using our vehicle filter options below. If you find your car, this part is compatible.

The Turbocharger Oil Pipe (OE 03G145736E) is a critical turbo oil feed/return line designed to maintain a continuous flow of engine oil to and from the turbocharger on many Volkswagen-Audi Group (VAG) 1.9 TDI and 2.0 TDI engines. This part ensures the turbo’s bearings remain properly lubricated and cooled, which is essential for long turbo life and optimal performance. When this oil line corrodes, cracks or leaks, it can lead to turbo overheating, reduced boost pressure and even premature turbo failure — making replacement with a quality unit like this essential during turbo rebuilds or as part of preventative maintenance. Compatible applications include Audi A1 (8X), A3 (8P), Q3 (8U), TT (8J) and numerous Seat, Skoda and VW models equipped with 1.9 / 2.0 TDI diesel engines that use OEM reference 03G145736E.
OEM Number: 03L145736D, 03L145736L, 03G145736F, 03G145736E
Oil Pipe, charger for AUDI SEAT SKODA VW A3, TT, EOS, YETI, ALTEA 03G145736F
Quantity : 1

Our SKU: TVW03G145736F_313
All our Turbo Charger Oil Pipe 03G145736E For Audi A1 8X, A3 8P, Q3 8U, TT 8J 2.0 Tdi are OEM quality and reliable after market car parts. This Turbo Charger Oil Pipe 03G145736E For Audi A1 8X, A3 8P, Q3 8U, TT 8J 2.0 Tdi is specifically compatible with Audi: A1, A3, Q3, TT, Seat: Alhambra, Altea, Altea XL, Ibiza, Leon, Toledo, Skoda: Fabia, Octavia, Rapid, Roomster, Superb, Yeti, VW: Beetle, Caddy, Eos, Golf, Golf Plus, Jetta, LT, Passat, Passat Alltrack, Passat CC, Polo, Scirocco, Sharan, Tiguan, Touran, .
Please use our make-model-year tool to check this part’s compatibility with your vehicle. However, please note that our tool is for reference only and we recommend that you check the part number on your old unit prior to purchasing.
If you are still not sure about the compatibility of this part to your vehicle, please supply us with the VIN number or Reg number in our live chat or contact form! You can also find details on our purchasing & shipping guide here.

Key Benefits

• OEM-Referenced Fit: Designed to match the original 03G145736E part for direct fitment on supported VAG diesel engines — no modifications required.

• Critical Turbo Protection: Supplies oil reliably to turbocharger bearings and helps return used oil to the sump, protecting against overheating or bearing wear that can shorten turbo life.

• Restores Engine Reliability: A failing oil pipe often causes loss of oil pressure at the turbo, triggering performance issues — replacing it helps restore smooth, consistent boost and engine response.

• Heavy-Duty Construction: Built from engine-rated metals and fittings to withstand heat, vibration and pressure cycles typical in turbocharged diesel engines.

• Wide Model Coverage: Fits a large range of VAG-group vehicles including Audi A1, A3, Q3 and TT, as well as many Seat, Skoda and Volkswagen (e.g., Golf, Passat, Leon, Fabia) models with compatible TDI engines.

Frequently Asked Questions (FAQs)

Q1: What does the turbocharger oil pipe do?
A: It carries engine oil to and from the turbocharger’s bearing housing so the turbo’s internal bearings are continually lubricated and cooled during operation — vital for longevity and performance.

Q2: What vehicles use part 03G145736E?
A: This oil pipe is commonly fitted in Audi A1 (8X), A3 (8P), Q3 (8U) and TT (8J) equipped with 1.9 TDI or 2.0 TDI engines, and also fits many Seat, Skoda and VW diesels sharing the same engine platform.

Q3: What are symptoms of a bad turbo oil pipe?
A: Look for oil leaks under the engine bay, decreased turbo boost pressure, smoke from the turbo area, or unusual turbo noise — all common signs of oil line issues.

Q4: Can I drive with a damaged oil pipe?
A: Driving with a faulty oil line can quickly lead to turbo failure and potentially widespread engine damage due to inadequate lubrication — replacing it promptly is recommended.

Q5: Is this a supply or return line?
A: The part 03G145736E typically functions as a turbocharger oil return line (sometimes referred to as an oil feed/return pipe depending on specific routing) for compatible TDI engines.

Explore more from our collection.