VW Tiguan DPF Fault
Diesel engines require Diesel Particulate Filters (DPFs) to minimise harmful emissions. But what if it stops working as it should? This blog post will discuss how we helped a customer with this problem.
Upon noticing an engine warning light on their VW Tiguan, a client brought the vehicle to our garage in Dursley for repairs. While there were no visible problems, they were still concerned that there might be a serious problem.
When there is a problem with your vehicle, the engine management light serves as an early warning system. These warnings should not be ignored, as they could escalate and result in costly repairs. That’s something nobody wants! So, we had VW specialists on hand to assist with this issue.
Let’s get into it!
We Found the Following VW Fault
Our VW expert verified that the engine management light illuminated on the Tiguan when the engine started. To identify the root cause of the issue, our mechanic conducted a diagnostic test, which produced the following error code:
P154B 00 – Diesel Particulate Filter, difference pressure sensor faulty.
When it comes to our specialists, fault codes are like road signs, leading them to the place where the problem lies.
In this case, resolving the DPF issue as soon as possible before it worsens was important.
The failure of a DPF can lead to a variety of problems, including:
- Black smoke coming from your exhaust
- Failing your MOT emissions test
- Mechanical failure
- Your VW could enter into “limp mode” to protect the engine from damage.
If you ignore any DPF issues, they may cause more costly repairs down the road.
Several problems can cause DPF issues. However, on this occasion, we turned to VW technical information, which contains detailed specifications, instructions, and guidelines for mechanics.
At RS Autotechnik, we can access VW technical information, just like Volkswagen dealerships. Compared to VW dealerships, our garage in Dursley offers dealership-level service and great value.
Our VW Diagnostic Process
In a series of live data checks, our VW expert found the pressure sensor on the DPF had “implausible readings”.
At RS Autotechnik, we use a 15-step diagnostic process to fix any problem on the first visit. As a result, you save time, stress, and money over taking your vehicle to a VW dealership. Our VW specialist identified a common problem with the DPF sensor based on the VW technical information (including the technical bulletins).
Our VW experts are very thorough during their diagnosis, so they ensured it was not a wiring problem by testing the wiring voltage using an oscilloscope (the main VW dealer wouldn’t do this!)
It was determined that the DPF sensor was to blame since all wires were working properly.
VW Tiguan DPF Fault Repair Process
After identifying the cause of the illuminated engine management light, our VW expert offered recommendations to the client. You’re always in control at RS Autotechnik. Once we have your approval, we will begin fixing your vehicle.
In order to complete the fix, we sourced a replacement DPF sensor after all parties agreed with our recommendations. In addition, to ensure your VW is performing at its best, we only use genuine Volkswagen parts or high-quality equivalents.
Upon replacing the faulty sensor, our expert conducted a live data road test to ensure the DPF was now functioning correctly. As a result of our extensive road testing, we confirmed that the Tiguan’s DPF was working correctly again, and the engine management light had disappeared!
Our client was thrilled after receiving their vehicle back in perfect working order. We provided better value than the VW dealer and kept them updated throughout the process.
What more could you ask for?
Conclusion
Our recent client brought their VW Tiguan to RS Autotechnik when they noticed the engine management fault light was on. We found fault with the DPF sensor after thoroughly testing the vehicle with VW technical information and our 15-step diagnostic process.
We were fortunate to catch the problem early since the VW did not show any performance drop when the problem was detected. Our VW specialist replaced the DPF sensor with a high-quality VW replacement part.
Following a thorough road test, the client received their keys back and left with a smile on their face.
Have you noticed an illuminated engine management light on your VW? The problem will only get worse if you ignore it. Call RS Autotechnik today if you need quality VW repairs.
Get your VW checked out by contacting us today.
