Find answers to the most common Audi repair and maintenance questions at TP Auto Repair. Learn about service intervals, diagnostics, parts, and expert tips for every Audi model.
What Are the Signs of a Faulty Fuel Pressure Regulator? A faulty fuel pressure regulator typically reveals itself through symptoms such as hard starting, rough idle, poor fuel economy, black exhaust smoke, fuel smell, loss of power, and in some cases fuel in the vacuum line. These signs appear because the engine is receiving either …
What Coolant Does a 2015 Audi A6 Use? The 2015 Audi A6 is designed to use a pink or purple, phosphate‑ and silicate‑free, HOAT/OAT-based coolant that meets VW/Audi specification G12++, G13, or their direct superseding equivalents; mixing it with generic green or “universal” coolant is not recommended. Understanding the Correct Coolant Specification For the 2015 …
What Is the Bolt Pattern on a 2001 Audi TT? The standard bolt pattern on a 2001 Audi TT is 5×100, meaning five wheel bolts arranged on a 100 mm diameter circle. This specification applies to most first-generation (8N) Audi TT models sold in North America and many other markets; however, owners should still verify …
What Oil Does a 2013 Audi A5 2.0T Take? The 2013 Audi A5 2.0T typically requires a full synthetic engine oil that meets VW 502 00 (or VW 504 00, where available) specifications, most commonly in 5W-40 or 5W-30 viscosity, with 5W-40 being the most widely used in North America and 5W-30 more common in …
Is It Worth Fixing a Catalytic Converter? Fixing a catalytic converter is usually worth it if you plan to keep the car, need to pass emissions testing, or the vehicle still has substantial value; it’s often not worth it for very old, low-value cars where the repair can exceed the car’s market price. The decision …
Does the Audi Q7 Have Matrix Headlights? Yes, the Audi Q7 does offer Matrix headlights, but availability depends on model year, market, and trim level; on recent Q7 models, Audi’s advanced Matrix LED technology is typically optional or included on higher trims rather than standard across the range. This article explains when and how the …
How Much Is a 2019 Audi A4 Worth Today? A 2019 Audi A4 is typically worth between $18,000 and $30,000 in late 2025, with most real-world transactions for well-kept, average-mileage models landing in the $20,000–$26,000 range. The exact value depends heavily on mileage, trim level, condition, options, drivetrain, and local market demand. The Market Position …
Can I Replace My Own Lug Nut? Yes, in most cases you can safely replace your own lug nut at home, provided the wheel stud is undamaged, you have the correct replacement nut, and you follow basic safety procedures like properly lifting and securing the vehicle and torquing the nut to spec. Below is a …
Rain-X vs. Bosch: Which Wiper Blades Are Better? Both Rain‑X and Bosch make strong-performing wiper blades, but for most drivers Bosch generally offers better overall wiping performance, durability, and quiet operation, while Rain‑X stands out for its budget-friendly price and its built-in water‑repellent technology on certain models. The better choice depends on your priorities: maximum …
What Is the Length of a 2021 Audi Q5? The 2021 Audi Q5 has an overall length of approximately 4,682 mm (184.4 inches) in its standard SUV form, while the 2021 Audi Q5 Sportback is slightly longer at about 4,689 mm (184.6 inches). These dimensions place the Q5 firmly in the compact luxury SUV segment, …
How to Fix Error Code P0401: Exhaust Gas Recirculation (EGR) Flow Insufficient Error code P0401 usually means the engine’s Exhaust Gas Recirculation (EGR) system isn’t flowing enough exhaust gas, typically due to carbon buildup, a faulty EGR valve, clogged passages, or issues with sensors or vacuum control. Fixing it generally involves cleaning or replacing the …
What Size Are Audi A4 Windshield Wipers? Audi A4 windshield wiper sizes vary by model year and body style, but most modern A4s typically use a 24-inch blade on the driver’s side and a 19-inch blade on the passenger’s side, with some model years using 24″/20″ or slightly different rear wiper sizes for Avant (wagon) …
Is Replacing an Oil Pump a Big Job? Yes, replacing an oil pump is typically a big job because it often requires removing major engine components—or even the entire engine—making it labor-intensive, time-consuming, and relatively expensive compared with many other repairs. This article explains why the job is so involved, when it’s truly necessary, what …
Can You Still Drive Your Car If the AC Compressor Is Bad? Yes, you can often still drive a car with a bad AC compressor, but whether it is safe, practical, or wise depends on how the compressor has failed, how your vehicle’s belt system is designed, and whether the failing parts are causing noise, …
Are Audis Known for Transmission Problems? Audis are not universally plagued by transmission problems, but certain models, years, and specific gearbox types—especially some dual‑clutch (S tronic/DSG) and Multitronic CVT units—have documented issues that owners and experts widely recognize. Understanding which transmissions are affected, why problems occur, and how Audi has responded is essential for buyers …
What Is the Paint Code for Audi Ice Silver Metallic? The factory paint code most commonly associated with Audi Ice Silver Metallic is LX7W, which is also referenced as 9C in some Audi documentation and touch‑up products. This code identifies the specific metallic silver formulation used by Audi and is essential when ordering paint or …
How to Replace the Tail Light on an Audi Q5 2018 Replacing the tail light on a 2018 Audi Q5 typically involves opening the tailgate, removing the interior trim access cover, undoing a few retaining fasteners, disconnecting the wiring harness, swapping in the new light unit or bulb, and reassembling everything in reverse—usually a 20–40 …
How to Change the Cabin Air Filter on an Audi Q7 Replacing the cabin air filter on an Audi Q7 typically involves removing the glovebox or under-dash panel on the passenger side, sliding out the old filter from its housing, installing a new filter with the correct airflow direction, and reassembling the panels. The process …
The Best Year for the Audi Q5: A Data-Driven Look The Audi Q5’s best all‑around model year for most buyers is widely considered to be the 2018 model, which combines a full redesign, strong reliability, modern tech, safety, and value on the used market; however, certain other years—especially 2017, 2020, and 2021—are better choices for …
How Long Do Front Brakes Last on an Audi Q7? On most Audi Q7 models, front brake pads typically last between 25,000 and 50,000 miles (40,000–80,000 km), while front brake discs (rotors) often last roughly 50,000 to 80,000 miles (80,000–130,000 km) under normal driving. However, heavy SUV weight, driving style, and urban stop‑and‑go traffic can …
Is a Leaking Valve Cover Gasket Serious? A leaking valve cover gasket is usually not an immediate emergency, but it is serious enough that you should fix it soon. Left unattended, the leak can worsen, damage ignition components, create burning oil smells and smoke, and in extreme cases pose a fire risk or contribute to …
The Most Common Issues with the Audi TT The most commonly reported issues with the Audi TT center on electrical faults (especially with instrument clusters and sensors), cooling system and water pump failures, suspension wear, and, on older models, issues with the Haldex all‑wheel-drive system and coil pack/ignition problems. The exact pattern of faults depends …
Why Audi Is Getting Rid of the A4 Audi is not killing the A4 outright but transforming it: beginning with the new generation, the A4 name for combustion models is being replaced by “A5,” while “A4” will be reserved for fully electric vehicles. This shift is part of a broader renaming strategy tied to Audi’s …
What Oil Should You Put in Your 2.0 TDI? You should generally use a fully synthetic low-ash 5W-30 or 5W-40 oil that meets the specific Volkswagen (VW) approval for your 2.0 TDI engine—most commonly VW 507.00 or VW 504.00/507.00 for modern engines with diesel particulate filters (DPF), or VW 505.01 / 506.01 / 507.00 for …
What Size Battery Is in the 2018 Audi A3? The 2018 Audi A3 typically uses a 12-volt AGM battery in the Group 48 (H6) size for most gasoline models, though exact capacity and specification can vary slightly by engine, trim, and market. Understanding the correct size and type is important for proper replacement, reliable starting, …
How Many Quarts of Oil Does an Audi Q7 Take? An Audi Q7 typically takes between 6.2 and 7.7 quarts of engine oil, depending on the model year and engine type. Most recent U.S.-market Q7s with the 2.0L turbo or 3.0L V6 engines fall in this range, but owners should always confirm using the owner’s …
Why mechanics rarely “turn” brake rotors anymore Most shops replace brake rotors instead of machining (“turning”) them because modern rotors are thinner and cheaper, labor is more expensive, and resurfacing often leads to brake noise or pulsation comebacks; OEM guidance and liability concerns also push replacement over turning. In short, new rotors usually deliver more …
Symptoms of a Bad Ignition Coil A failing ignition coil typically causes rough idle, misfires (especially under load), hard starting or no-start, loss of power, poor fuel economy, an illuminated check-engine light (often with P0300–P030X or P035X codes), occasional backfiring, fuel smell from the exhaust, and sometimes stalling. Below is a detailed look at what …
How to Tell if Your Car’s Thermostat Is Bad If your engine overheats quickly or never reaches normal temperature, the cabin heat is weak, or you see a check-engine light with codes like P0128, your thermostat may be failing. In most cases, a stuck-closed thermostat causes rapid overheating and a cold upper radiator hose, while …
Failing Ignition Coil Symptoms: What Drivers Need to Know A failing ignition coil typically causes misfires, rough idle, hard starts, loss of power under acceleration, poor fuel economy, and an illuminated or flashing check-engine light; you may also notice stalling, fuel smell from the exhaust, backfiring, and symptoms that worsen in rain or high humidity. …