Audi A7 Typical Problems - TFSI Engine Problems

By Nick Marchenko, PhD

The Audi A7 C7 (4G) is a premium sedan manufactured from 2010 to 2018, positioned in the Ingolstadt lineup between the A6 and A8 models. In 2014, as part of the facelift, cosmetic changes were made to the front and rear, and LED headlights became standard equipment.

Audi A7 Engine Problems - Petrol

The petrol engine lineup for the A7 C7 includes the four-cylinder models 1.8 TFSI (190 horsepower) and 2.0 TFSI (252 horsepower), the V6 models 2.8 FSI (204 horsepower) and 3.0 TFSI (300, 310, 333 horsepower), as well as the top models with V8 engines S7 (420, 450 horsepower) and RS7 (560, 605 horsepower).

The four-cylinder engines (EA888 series) were introduced for the C7 in November 2014. Therefore, the significant oil consumption issues that were prevalent in the early A6 models are nearly non-existent in the A7 C7. The timing chain has also become more durable, provided regular maintenance is performed. The same can be said for the 2.0 TFSI engine.

The V6 engines are equally robust and, apart from higher fuel consumption, have no disadvantages compared to the four-cylinders. In fact, those seeking performance and sound should consider the V6. Numerous positive reports on the internet also indicate good reliability and, above all, a high level of enjoyment.

The V8 engine, found in the S7 and RS7, tops the list in terms of performance. Unfortunately, there were serious problems with the EA824 engine series, particularly related to the turbochargers. Insufficient oil supply caused damage to the turbochargers, attributed to a too tightly meshed oil screen. Fortunately, after numerous failures, the manufacturer initiated a recall for all S7 and RS7 models produced between June 2012 and March 2017 to address this issue.

Audi A7 Engine Problems - Diesel

The lineup also included the 3.0 TDI diesel engine, available in various power outputs (190 – 326 horsepower).

A common weakness in these engines is the camshafts, which can suffer defects due to material issues. Affected are engines from the EA897 EVO series with the following engine numbers: CRT 000001 to 073951, CZV 000001 to 003450. This problem was resolved in February 2017. Additionally, the 3.0 TDI is affected by the Diesel emissions scandal.

Regardless of the engine choice, typical diesel-related issues should be monitored at high mileage, which tend to emerge with any manufacturer. These include:

• Diesel particulate filter (DPF);
• Dual-mass flywheel (DMF);
• Turbocharger;
• Exhaust gas recirculation (EGR) valve;
• Fuel injectors.

Audi A7 Transmission Issues

The A7 C7 was offered with three different automatic transmissions: the Multitronic (CVT), the S-Tronic (dual-clutch), and the Tiptronic (torque converter).

Multitronic Issues

The Multitronic transmission was available for the 2.8 FSI and 3.0 TDI with 204 horsepower and is considered problematic, known for rpm fluctuations, jerking during acceleration, and occasional transmission failures. If you opt for this transmission, ensure that the service history is complete and regular transmission flushes have been performed.

S-Tronic Issues

The S-Tronic dual-clutch transmission is the most common choice for the A7 C7. Compared to older generations, the S-Tronic is relatively reliable but can still experience premature clutch wear, especially if the vehicle has been driven mainly in heavy city traffic or has towed heavy trailers. During a test drive, check for smooth upshifting and downshifting, and ensure there is no stuttering or jerking during acceleration. Regular transmission flushes every 50,000 to 60,000 miles are essential.

Tiptronic Issues

The Tiptronic is an eight-speed torque converter automatic transmission, available only with the top petrol and diesel engines. Generally, this transmission is robust and trouble-free in the A7 C7. To maintain its reliability, as with the Multitronic and S-Tronic, regular transmission flushes are recommended.

Audi A7 Recalls

The Audi A7 C7 has been subject to several recalls. The following are all recall actions affecting a significant number of vehicles:

• 2.0 TFSI models until the end of 2016 may experience coolant blockage due to foreign particles in the auxiliary coolant pump.
• Diesel emissions scandal (3.0 TDI)
• 3.0 TDI models produced from March to December 2012 may allow oil to enter the brake booster via the vacuum lines, damaging the diaphragm and reducing brake assist.
• A clogged oil filter can lead to reduced oil supply and engine failure in the S7 and RS7 (as mentioned earlier).
• The KBA has reported potential contact corrosion in the connectors of the supplementary heater, leading to overheating. This issue affects only diesel models produced in 2014.
• Models from 2013 to 2018 may experience fuel leakage due to leaks in the fuel distributor.
• A defective locking pin can result in the loss of the attached trailer. Affected are models from 2015 to 2018. During a workshop visit, the tow hitch will be inspected and replaced if necessary.
• Moisture ingress into the belt starter generator can potentially cause overheating. This issue affects A7 models produced from 2017.

Tip: Detailed information about recalls can be obtained from the KBA or ADAC. You can use the Vehicle Identification Number (VIN) to determine if a specific model is affected by recalls and check if any required actions have already been completed.

Used Car Market Overview

The price range for the A7 C7 in popular used car markets starts at approximately $11,000 to $12,000 for pre-facelift models, while post-facelift models command around $20,000. The majority of available vehicles are diesel variants, and most come equipped with Quattro all-wheel drive.

Nick Marchenko, PhD

Industrial Engineer & Automotive Content Specialist

Nick writes in-depth guides on car clubs, engine specs, vehicle ownership, and modifications, combining engineering knowledge with automotive passion.

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