A Guide to the 2013-2017 Audi A6 Quattro Engine Oil Level Sensor
Seeing a false 'low oil' warning on your dash? Here’s what you need to know about your car's electronic dipstick.
- A false 'low oil' warning is a known issue covered by Audi TSB #2038119 for 3.0L engines.
- Your A6 Quattro has no dipstick; this sensor is the only way to check the oil level.
- Aftermarket brands like Hella are often OEM suppliers and offer the best value and reliability.
- The replacement process requires a full oil drain, making it a good task to pair with a scheduled oil change.
Understanding the Oil Level Sensor in Your A6 Quattro
If you own a C7 generation Audi A6, you know that checking your oil involves the MMI system, not a physical dipstick. The component responsible for this digital reading is the Engine Oil Level Sensor. It's a sophisticated part that provides real-time data, but when it fails, it can cause confusing and alarming warnings. Knowing the signs of failure and how to choose the right replacement part is key to keeping your Audi running smoothly.
Known Issue: Technical Service Bulletin (TSB) 2038119
Audi issued a TSB for 2012-2015 A6 models with the 3.0L engine that experience a false "Oil minimum warning" message. The bulletin acknowledges that a defective oil level sensor is the cause and advises technicians to replace it with an updated part. If you have this specific issue, your problem is likely a known fault.
🎬 See how to diagnose and fix a defective sensor code.Common Symptoms of a Failing Sensor
A bad oil level sensor typically won't leave you stranded, but it will create annoying and potentially risky situations. The most common sign is a yellow "MIN" oil level warning on your instrument cluster, even if you've checked the MMI and know the level is fine. You might also see the warning light flash intermittently, or the MMI display might refuse to show a reading at all. In some cases, it can also trigger the main Check Engine Light.
Pro Tip: Check Connections First
Before buying a new sensor, inspect the wiring and connector plug attached to the old one. Corrosion or damage to the wires can cause the exact same symptoms as a failed sensor. A quick cleaning of the contacts could save you time and money.
Choosing the Right Aftermarket Sensor
When replacing this sensor, you have a choice between Genuine Audi parts and several aftermarket brands. For a critical sensor like this, quality matters.
- OEM-Tier (Hella, Vemo): Brands like Hella are often the Original Equipment Manufacturer (OEM) for Audi, meaning they make the part that goes into the car at the factory. Owners frequently report that Hella sensors are identical to the genuine part, sometimes with the Audi logo ground off. These are your best bet for reliability and accurate readings without paying dealership prices. Vemo is another well-regarded German brand often seen as a high-quality alternative.
- Standard Aftermarket (Facet, Standard Ignition): Brands like Facet and Standard Ignition are established aftermarket manufacturers that offer a more budget-friendly option. While generally reliable, they may not have the same level of precision or longevity as an OEM-tier part. They are a viable choice if cost is the primary concern.
Cost to Replace the Engine Oil Level Sensor
| Part Type | Cost Range |
|---|---|
| New OEM (Dealer) | $165 - $215 |
| New Aftermarket | $89 - $327 |
| Shop Labor | $103 - $152 |
| Total Professional Replacement | $268 - $375 |
Frequently Asked Questions
Can I drive with a bad oil level sensor?
Yes, but with caution. A faulty sensor does not affect the engine's operation, but it leaves you blind to the actual oil level. You must manually verify your oil is at a safe level before driving. Since there is no dipstick, this means you must be confident in the oil level from your last service or drain and measure the oil yourself. It is best to get the sensor replaced as soon as possible.
Is replacing the oil level sensor a DIY job?
Yes, if you are comfortable doing an oil change. The sensor is located on the bottom of the oil pan and is held in by three small bolts. The job requires you to safely lift the vehicle, drain all the engine oil, replace the sensor and its gasket, and then refill with new oil. 🎬 Watch: Step-by-step guide to replacing the sensor and gasket. After replacement, a "level adaptation" may need to be performed with a diagnostic tool for perfect accuracy, as noted in the TSB.
Why does my MMI say "no information available" for the oil level?
This can happen for a few reasons. First, the engine needs to be warm and the car must sit for about two minutes on level ground after being shut off for the sensor to take a reading. If you've followed this procedure and it still shows no information, it could be a sign that the sensor has failed completely.
Will a new sensor fix my oil consumption problem?
No. The oil level sensor only measures the amount of oil; it has no role in oil consumption. If your car is losing oil, you have a separate issue such as a leak or internal engine problem that needs to be diagnosed by a mechanic.
Helpful Videos
Technical Specifications
OEM Part Numbers: 03C907660S 03C907660H 079907660A 06L907637
Located on the bottom of the engine oil pan, typically secured by three 10mm fasteners. The replacement involves draining the engine oil.
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The information in this article is provided for general reference and educational purposes only. Vehicle specifications, procedures, and part compatibility can vary by production date, trim level, and region. Always consult your vehicle's factory service manual and verify part numbers before purchasing or performing repairs. Safety-critical components such as airbags, seat belts, and braking systems should be installed by a qualified professional.
- Audi A6 Quattro:
- 🎬 Helpful Videos
- 🛍️ Shop This Part
- Understanding the Oil Level Sensor in Your A6 Quattro
- Known Issue: Technical Service Bulletin (TSB) 2038119
- Common Symptoms of a Failing Sensor
- Pro Tip: Check Connections First
- Choosing the Right Aftermarket Sensor
- Cost to Replace the Engine Oil Level Sensor
- Frequently Asked Questions
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