Solved: Audi A6 Power Loss
Audi’s are high-end German vehicles known for their luxury, precise engineering, and excellent performance.
But what happens when your Audi loses power and stops performing as it should?
When a recent client brought their Audi A6 to our specialists at Links Automotive, their vehicle was showing an engine management light. And, to make matters worse, their vehicle was suffering from power loss.
Luckily, our Audi specialists had previously dealt with Audi power loss issues and were confident they could solve the problem.
What we found
During the initial inspection, our Audi experts visually confirmed that the engine management light appeared once our client’s A6 was fired up.
From there, a test drive confirmed the Audi A6 power loss. The vehicle felt incredibly sluggish and wouldn’t go faster than 40mph. Our specialists believed the car had gone into “Limp Mode”.
Limp mode is a security feature that most modern vehicles have. It activates when your Audi has an issue to prevent further damage from occurring. During limp mode, it’s pretty common for vehicles to lose power and speed while non-essential functions switch off.
There are several reasons why the Audi A6 was in limp mode, including:
- Faulty sensors
- Transmission issues
- Low fluid levels
These aren’t issues you want to ignore, as they could leave you with costly future repairs (and obviously a vehicle stuck in limp mode).
Our technicians knew that a closer inspection would be required to get to the bottom of the problem.
The Diagnosis
Before our Audi experts performed any in-depth checks, they performed a diagnostic test to see if any fault codes were present.
The test returned this fault code:
- P0237 – Manifold Pressure/Boost Sensor G31 – Signal Too Low
While this might not mean much to you, to our Audi specialists, it gives them a direction.
At Links Automotive, we use a 15-step diagnostic process to solve all issues your vehicle has during the first visit. You save time, stress, and money with us.
Now our expert technicians had a direction and knew there was an issue with the sensors; they could begin a more in-depth look at the vehicle. To do so, our Audi experts used an Oscilloscope.
An Oscilloscope is a specialist piece of equipment that displays the voltage of certain vehicle parts. Using these readings, our technicians can hone in on the root cause of the problem. Using an Oscilloscope also allows us to check that the wiring isn’t at fault, preventing a misdiagnosis of the issue.
The readings revealed that the correct signals were coming from the Audi A6 Engine Control Unit (ECU), so there wasn’t an issue with the wiring. This confirmed that it was in fact the sensor that was defective.
Testing the waveform between parts (in the wiring) is something that other garages might have overlooked. While this time, the sensor was at fault, it could have been the wiring.
At Links Automotive, we take a more systematic approach. We always perform a thorough inspection to rule out any potential causes, saving you time and money wasted on fixes that won’t solve your vehicle’s problem.
Using these results, our Audi specialists deducted that our client’s vehicle needed a new Turbocharger pressure sensor.
Fixing the Audi A6
Once our Audi experts had discovered the root cause of the Audi A6 power loss; they called the client to inform them of our findings.
At Links Automotive, we always keep you in the know. We only start working on your vehicle when you say so. You’re in total control from start to finish.
Once our client had agreed to our recommendations for their vehicle, our experts got to work sourcing a replacement part.
As your local independent Audi specialist, we always use genuine Audi or high-quality alternative parts on your vehicle. Your Audi always receives the quality it deserves.
Once the replacement Turbocharger pressure sensor was installed, a comprehensive inspection ensured there weren’t any further issues and that the A6 performed as it should.
A thorough road test confirmed this vehicle was back to top working condition, and the diagnostic test returned no further fault codes.
…Best of all, the Audi A6 was no longer in limp mode.
Our client was pleased to have their vehicle back in peak condition, sound in the knowledge their Audi had been thoroughly taken care of. At Links Automotive, we always offer top rate customer service but at better value than the main Audi dealership. So what’s not to like?
Summary
A recent client brought their Audi A6 to our Macclesfield garage when their vehicle lost power and displayed the dreaded engine management light.
Upon initial inspection, our Audi specialists discovered that this A6 was in “limp mode”.
By using our 15-step diagnostic process, our Audi experts narrowed down the issue and discovered the turbocharger pressure sensor was faulty.
Our experts sourced a genuine Audi replacement, ensuring our client’s vehicle received the best quality so it would perform optimally. Once replaced, the vehicle ran like new and no longer operated in “limp mode”.
Our client was pleased to have their Audi A6 back in complete working condition without any power issues or engine management lights.
Is your Audi suffering from a power loss issue? Call Links Automotive today for a quality first-time fix. You’ll always get better than dealership value with us.
Call us on 01625 402262 and book your Audi inspection.
