No. 2100.1

2
Bulletin #: 2100.1
Advanced Technical Information
Part ID: 2473
Macan (PA) GTS – Check Engine Warning for Lean Fuel Mixture Error(s)
Vehicles Affected
Models
Model Year
Model Type
VIN Range
Vehicle-Specific Equipment
Macan
2020
95BBL1
N/A
N/A
Revision History
Revision
Release Date
Changes
0
March 5, 2021
Original document
1
January 10, 2022
Update of Model Year
Condition
Active instrument cluster faults for engine control warnings (00A016) occur in the wake of DME error entries 		
P0174(1)00_004083(1AB)- ‘Mixture formation, bank 2(1) – too lean.” One or both of these errors are possible. 		
Furthermore, these faults occur commonly under the following engine and environmental conditions:			
		
- Low RPM (≤ 2000 1/min)
		
- Closely approaching, or already warm engine and oil temperatures (≈ 90 °C water; > 40 °C oil )Low to mid 		
		
‘calculated’ engine load (20-50%)
		
- Vehicle Speed < 100 km/h (60 mph)
		
- In the majority of occurrences, the diagnostic responsible for the fault occurs at an altitude of 			
		
approximately 4500 feet, corresponding to an ambient air pressure of 861 mbar.
Technical Background
The diagnostic responsible for these faults is under analysis. If at least four of the five aforementioned conditions 		
from the fault’s environmental data exist, then consider the vehicle to exhibit this diagnostic phenomenon.
Additional Information
Porsche is aware of this fault and actively investigating it. There is no indication this diagnostic error is damaging to 		
the vehicle. Though less likely, this fault can reoccur, but there is no need to alter driving habits.
AfterSales
January 10, 2022
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Bulletin #: 2100.1
Advanced Technical Information
Part ID: 2473
Service Information
After recording a Vehicle Analysis Log (VAL), delete the fault memory log and drive to ensure there are no further 		
errors. If a vehicle exhibits the diagnostic error described herein, there is no need to replace any parts at this 			
time. As soon as more information and a means for resolution is available, this bulletin will update accordingly.
Warranty
As always, please document the case completely in PQIS.
Use the following troubleshooting labor operation:
03350000
On board diagnostic (Main work) Fault memory read out
03350053
On board diagnostic (Composite) VAL
For this repair, please code the “cause” as follows:
Cause location:
24700
DME control unit
Cause symptom:
4028
Reacts to Faults
Search Items
95BBL1; 95B.II; P017400_004083; P017100_0041AB- ‘Mixture formation, bank 2, bank 1 – too lean’ ;
Macan PA –GTS , 2.9 liter V6 bi-turbo; fuel trim; altitude
Important Notice: Technical Bulletins issued by Porsche Cars North America, Inc. are intended only for use by professional automotive technicians who have attended Porsche service training courses. They are
written to inform those technicians of conditions that may occur on some Porsche vehicles, or to provide information that could assist in the proper servicing of a vehicle. Porsche special tools may be necessary in
order to perform certain operations identified in these bulletins. Use of tools and procedures other than those Porsche recommends in these bulletins may be detrimental to the safe operation of your vehicle, and
may endanger the people working on it. Properly trained Porsche technicians have the equipment, tools, safety instructions, and know-how to do the job properly and safely. Part numbers listed in these bulletins
are for reference only. The work procedures updated electronically in the Porsche PIWIS diagnostic and testing device take precedence and, in the event of a discrepancy, the work procedures in the PIWIS Tester
are the ones that must be followed.
A12873
©2022 Porsche Cars North America, Inc.
AfterSales
January 10, 2022
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