2018 Audi A4 Safety Report

2018 Audi A4: Strong crash ratings, but recurring MMI, powertrain, and airbag issues noted in complaints.

26Complaints
1Recalls
★★★★★Safety Rating
75/100Reliability Score
1Crash Reports
Most reported components: Unknown Or Other (6)Air Bags (3)Power Train (2)Service Brakes (2)Engine And Engine Cooling (1)Electrical System,Unknown Or Other,Back Over Prevention (1)Electrical System,Forward Collision Avoidance (1)Suspension (1)Power Train,Electrical System,Engine (1)Steering (1)

AI Safety Analysis for the 2018 Audi A4

The 2018 Audi A4 presents a generally strong safety profile, evidenced by its excellent NHTSA crash test ratings, achieving an Overall 5-star rating, with 5 stars in Side and Rollover tests, and 4 stars in Frontal crash tests. However, a closer look at the 26 NHTSA complaints reveals several recurring issues that could impact safety and reliability. The most frequently reported component category is 'UNKNOWN OR OTHER' with 6 complaints, followed by 'AIR BAGS' with 3 complaints, and 'POWER TRAIN' and 'SERVICE BRAKES' each with 2 complaints. While the vehicle has only 1 reported crash, 0 fires, 0 injuries, and 0 deaths, the nature of some complaints, such as unexpected braking or MMI system failures affecting backup cameras, indicates potential safety hazards. The recall history for the 2018 Audi A4 includes one significant recall (NHTSA Campaign Number 19V547000) concerning the passenger air bag system. This recall addresses a potential issue where the passenger air bag may be disabled, increasing the risk of injury in a crash. Several complaints directly reference airbag malfunction lights appearing after recall repairs, suggesting potential complications or incomplete remedies. Beyond the recall, common complaint patterns include issues with the MMI infotainment system spontaneously restarting, which can disable critical features like the backup camera and navigation, leading to potential collisions as reported in one instance. Power train issues, including differential failure and all-wheel-drive clutch problems, are also noted, with one severe instance leading to the vehicle jerking to a stop due to transmission puncture. Other notable concerns from the complaints include premature water pump failure, unexpected engagement of the Audi Pre-sense system causing abrupt stops at high speeds, and the emergency parking brake engaging without warning. While the overall crash test performance is commendable, these recurring mechanical and electronic glitches, particularly those affecting braking, steering, and driver assistance systems, warrant attention. The low number of total complaints (26) for a vehicle of this age and sales volume suggests that widespread catastrophic failures are not common, but the specific issues reported highlight areas where safety could be compromised.

Reliability Score

The 2018 Audi A4 receives a reliability score of 75 out of 100 based on analysis of NHTSA complaint data, recall history, crash reports, and safety ratings. This indicates above-average reliability relative to comparable vehicles.

Known Issues for the 2018 Audi A4

The following issues have been identified from NHTSA complaint data and owner reports for the 2018 Audi A4:

IssueSeverityFrequencyTypical Mileage
Mmi System Malfunction
Infotainment system spontaneously restarts, affecting backup camera, navigation, and Bluetooth, potentially causing distraction or collision risk.
Medium Occasional 20000-50000 miles
Passenger Airbag Recall Complications
Airbag malfunction light appearing after recall repair for disabled passenger airbag, increasing injury risk.
High Occasional N/A miles
Power Train/Differential Failure
Internal failure of front differential causing debris to puncture transmission, leading to abrupt vehicle stop.
High Rare 40000-60000 miles
Premature Water Pump Failure
Water pump failing prematurely, leading to coolant leaks and engine overheating risk.
Medium Occasional 50000-60000 miles
Audi Pre-Sense False Engagement
Automatic emergency braking engaging at high speeds without obstruction, causing abrupt stops and collision risk from behind.
High Rare N/A miles
Emergency Parking Brake Unintended Engagement
Parking brake engaging spontaneously while driving, causing abrupt stops and potential collision risk.
High Rare N/A miles

Common Problems Reported by Owners

Based on NHTSA complaint data, the following components account for the majority of reported issues with the 2018 Audi A4:

Unknown Or Other 23% of complaints

General complaints not fitting specific categories, including issues like fluid leaks and MMI system restarts.

Air Bags 12% of complaints

Malfunction lights appearing, often related to the passenger airbag recall or post-recall repairs.

Power Train 8% of complaints

Issues including differential failure, all-wheel-drive clutch problems, and engine malfunction messages.

Service Brakes 8% of complaints

Complaints about loud screeching from new brakes and unintended engagement of the emergency parking brake.

Engine And Engine Cooling 4% of complaints

Reports of premature water pump failure and engine malfunction messages.

Electrical System,Unknown Or Other,Back Over Prevention 4% of complaints

Issues with the MMI system affecting the backup camera and causing unintended braking.

Frequently Asked Questions About the 2018 Audi A4

Is the 2018 Audi A4 safe?

Based on NHTSA data, the 2018 Audi A4 received excellent crash test ratings (5-star Overall, Side, and Rollover; 4-star Frontal). However, 26 complaints highlight recurring issues with the MMI system, power train, and airbag system, including one recall for a potentially disabled passenger airbag. While major crashes are rare in the complaint data, these issues could pose safety risks.

What are common problems with the 2018 Audi A4?

The most reported issues for the 2018 Audi A4 include general 'UNKNOWN OR OTHER' problems (23% of complaints), 'AIR BAGS' (12%), and 'POWER TRAIN' (8%). Specific recurring problems involve the MMI infotainment system restarting, passenger airbag malfunction lights (sometimes post-recall repair), premature water pump failure, and in rare cases, unexpected engagement of the Audi Pre-sense system or emergency parking brake.

Are there any recalls for the 2018 Audi A4?

Yes, the 2018 Audi A4 has one recall (NHTSA Campaign Number 19V547000) related to the passenger air bag system. The recall addresses a potential issue where the passenger air bag may be disabled, increasing the risk of injury in a crash. Several complaints indicate issues with the airbag light appearing even after recall repairs.

How does the 2018 Audi A4 perform in crash tests?

The 2018 Audi A4 performed very well in NHTSA crash tests, earning an Overall 5-star safety rating. It received 5 stars for Side crash and Rollover resistance, and 4 stars for Frontal crash tests.

What should I look out for when buying a used 2018 Audi A4?

When considering a used 2018 Audi A4, pay close attention to the MMI infotainment system's functionality, ensure all recall work (especially for the passenger airbag) has been completed and verified, and check for any warning lights related to the engine, power train, or airbags. Inquire about service history, particularly regarding water pump replacements or any unusual braking/transmission behavior.

Buyer Advice

Our recommendation: While the 2018 Audi A4 boasts strong crash test ratings, potential buyers should be aware of recurring MMI system glitches, airbag recall complications, and isolated but severe powertrain issues. Ensure all recall work is verified and consider an extended warranty for electronic and powertrain components.

NHTSA Data Summary for 2018 Audi A4

This safety report is based on a comprehensive analysis of data from the National Highway Traffic Safety Administration (NHTSA) for the 2018 Audi A4. The data includes 26 consumer complaints filed by vehicle owners, 1 manufacturer-initiated safety recalls, 1 reported crashes, and safety rating assessments associated with this vehicle.

The NHTSA has assigned the 2018 Audi A4 an overall safety rating of 5 out of 5 stars, with a frontal crash rating of 4 stars, a side crash rating of 5 stars, and a rollover rating of 5 stars. These ratings are determined through controlled crash testing conducted by the NHTSA.

All data presented in this report is sourced from public NHTSA databases. Our AI analysis identifies patterns across complaint narratives, correlates them with recall history, and produces the safety assessment above. This analysis is updated as new complaints and recalls are filed with the NHTSA.

Consumers are encouraged to report vehicle safety problems to the NHTSA at nhtsa.gov. If your vehicle is subject to a recall, contact your dealer to schedule the free repair.