TECHNOFILE
IVS 360 TEAM SUPPORTS CUSTOMER WITH BMW REGENERATION FAILURE FAULT Opus IVS OEM-Trained Master Technicians support customers in the automotive aftermarket They do so via the IVS 360 diagnostic support service delivered from the Opus IVS Head office in Oxford, UK. Using the DrivePro’s market leading diagnostic software and extensive product knowledge, the IVS 360 team identifies the cause and steps needed to fix vehicle faults. IVS 360 reportedly provides technicians with the confidence to repair the most complex vehicles fast with live repair guidance from OE brandspecific master technicians.
Symptoms:
Opus IVS’ experts remote in real time directly to vehicle communication systems to diagnose, program and calibrate vehicles.
Lack of power; DDE engine management warning light on; DPF filter check control message displayed in cluster and I-drive.
This eliminates the uncertainty, giving workshops the confidence to get the most complex vehicles back on the road safely and fast.
Various fault codes can be stored like the ones listed below:
Globally, the IVS team provides essential diagnostic support to thousands of customers with the aim of improving efficiency and profitability in their workshops. Diagnostic support cases range across a wide range of vehicle brands and are managed through the OEM-Trained Master Technicians who are experienced brand specialists. A recent IVS 360 case involved a BMW. The DPF Pressure was too high to achieve successful regeneration. The customer was guided through the following causes and repair steps:
Affected Vehicles: • BMW - All Diesel models (2005 - 2017) - Diesel Particulate Filters fitted but not with the Add Blue system • Mini - All Diesel models (2005 - 2017) - Diesel Particulate Filters fitted but not with the Add Blue system
• 480A - Particulate filter system Engine - DME • 481A - Particulate filter system Engine - DME • 452A - Info particulate filter system Engine DME • 41BA - Exhaust backpressure sensor Engine DME • 41BB - Exhaust backpressure sensor Engine DME • 41CD - Plausibility pressure sensors Engine DME • 245000 - Particulate filter system ash volume in particulate filter above maximum Engine DME • 245C00 - Particulate filter system, flow resistance too high, filter clogged Engine DME
Possible Causes: • Backpressure read by the sensor is too high and causes a fault to be stored. DPF regen can no longer take place.
• Other faults in the DDE relating to glow plug operation, throttle operation, swirl flap operation, EGR valve and cooler will prevent the DDE from regenerating the DPF. • The customer’s driving style can also cause the DPF to become blocked if they do not drive the car for long enough journeys.
Repair Steps: 1. Carry out a quick test and ensure there are no other fault codes stored in the DDE. Other faults in the DDE relating to glow plug operation, throttle operation, swirl flap operation, EGR valve and cooler must be addressed and corrected if they are currently present. The DDE needs to be fault free and the engine must reach a minimum of 76 degrees Celsius whilst driving. 2. Go into the DDE and then diagnostic requests. Locate the DPF backpressure diagnostic request: - At idle it needs to be under 35mbar. - At 2000 RPM it needs to be under 65mbar - At 4000 RPM it needs to be under 130/150mbar - Figures a lot higher than the specified values will cause the fault codes to be entered and will stop a DPF regen 3. Use a suitable DPF cleaner, these are available from various sources. Follow the instructions provided with the cleaner to achieve the desired results. Stubborn DPFs can be cleaned by removing the filter and cleaning with an Ultrasonic cleaning machine. Companies who have Ultrasonic cleaning machines normally provide you with a flow test result so you can see how well the cleaning has worked.
Parts Required: DPF cleaner For more information on how Opus IVS can support your workshop, visit www.opusivs-au.com or email sales-au@opusivs.com 28
Australian Automotive Aftermarket Magazine February 2022
