Equipment Related Problems of the 2018 Audi A4

Table 1 shows two common equipment related problems of the 2018 Audi A4. The number one most common problem is related to the equipment (19 problems). The second most common problem is related to the radio/tape cd player (one problem).

Table 1. Equipment related problems of Audi A4

Problem Category	Number of Problems
Equipment problems	19
Radio/tape Cd Player problems	1

Recently reported Equipment problems of the 2018 Audi A4

The Equipment problem

A vehicle diagnostic scan dated 04/15/2026 at approximately 88,502 miles showed a stored transmission electronics fault: p084100, described as “transmission fluid pressure sensor/switch a range/performance,” with status listed as passive/sporadic. Read details...

The Radio/tape Cd Player problem

Rear view camera is intermittant when in reverse and backing up the vehicle. Sometimes there is no rear view camera while backing up. Multiple trips to Audi dealer - not fixed. Loaner car from dealer, 2018 Audi a5 had exactly the same problem. No rear camera - radio screen instead. Read details...

Equipment related problems in other Audi A4 model year vehicles:

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☘ A4 Service Bulletins

⚑ A4 Safety Recalls

☤ A4 Defect Investigations