The Hellcat brought 707 hp to the muscle car segment when it launched in 2015, making it the most powerful production muscle car at the time. Built on the LC platform with the supercharged 6.2L HEMI V8, it pairs extreme straight-line performance with comfortable grand touring capability. In Europe it is sold through specialist US-car importers (AEC Europe) rather than mainstream dealer networks, which affects parts availability and service access.· more· less
Supercharger bearings fail, causing whining noise and loss of boost pressure · more· less
The IHI twin-screw supercharger uses snout bearings that are known to fail, particularly on 2015-2016 models which had lower-quality bearings from a specific vendor. Symptoms include an abnormal grinding or rattling noise at idle and reduced boost pressure. Dodge corrected the bearing quality for 2017+ production. A snout bearing rebuild costs approximately €2,000-3,000 at a specialist, while full supercharger replacement runs €6,000-8,000. Under warranty, Dodge replaced affected superchargers at no cost. On used cars, listen carefully for any unusual supercharger noise at idle and under boost. Post-2017 models have a significantly lower failure rate.
Rear differential noise and failure
€300 - 3,5002 of 7
Differential groans at low speeds and whines at highway speeds due to inadequate design for 707+ hp loads · more· less
A class action lawsuit covering 2015-2022 V8 Challengers alleges the rear differential is not adequately designed for the torque loads. Symptoms range from groaning during low-speed turns (often fixable with a fluid change and friction modifier additive for approximately €100-300) to persistent whining at highway speeds indicating bearing wear. Severe cases require full differential rebuild or replacement. The Hellcat's 650 lb-ft of torque amplifies this issue compared to the R/T. Wheel hop during hard launches accelerates wear. On many cars, a fluid change with the correct Mopar additive resolves the noise within 30 km of driving.
Driveshaft center bearing failure
€800 - 2,5003 of 7
Two-piece driveshaft center support bearing fails under the Hellcat's torque output · more· less
The Challenger uses a two-piece driveshaft with a center support bearing that was designed for the platform across all trims, from V6 to Hellcat. This means the same assembly handles both 305 hp and 707+ hp, and the Hellcat's torque regularly overwhelms it. Symptoms include a clunking noise on acceleration, when shifting between drive and reverse, or vibration at highway speeds. The OEM replacement driveshaft costs approximately €1,000-1,500 with labor. Many owners opt for aftermarket one-piece aluminum driveshafts (approximately €2,000-2,500 installed) to permanently solve the problem. The center bearing is more likely to fail on cars that have been launched hard or driven aggressively.
Intercooler coolant pump failure
€1,200 - 2,5004 of 7
Charge air coolant pump connector corrodes or pump motor fails, triggering warning lights · more· less
The supercharger's intercooler system uses an auxiliary coolant pump located in the driver-side fender area. The electrical connector is prone to water intrusion and corrosion, particularly on pre-2018 models that lacked dielectric grease from the factory. Dodge issued a TSB in 2018 for connector corrosion. Symptoms include warning lights (codes U113F, U1140, U02A9, U05AA), an intercooler coolant level warning, or the pump running continuously. The pump itself costs approximately €400-600, but dealer replacement with diagnosis can reach €1,200-2,500 depending on the model year. Note that 2015-2017 and 2018+ pumps are not interchangeable.
Hood scoop paint chipping and corrosion
€500 - 2,0005 of 7
Aluminum hood and scoop suffer from paint flaking due to thermal expansion mismatch · more· less
The aluminum hood and functional air intake scoop on the Hellcat are prone to paint chipping and corrosion. The root cause is thermal expansion: the center scoop flexes with temperature changes, and the scoop edges rub against the hood, creating paint chips. Dodge issued redesigned scoops with thicker bases and reinforcing ribs. The aluminum hood itself can develop corrosion under chipped paint. Professional repaint of the hood costs approximately €1,000-2,000, while scoop replacement with the updated part runs €500-800. Almost all Hellcats older than 5 years show some degree of this issue.
Suspension component rust (pre-2018 builds)
€200 - 1,5006 of 7
Control arms and suspension parts develop surface rust from outdoor storage at the Brampton assembly plant · more· less
Suspension components for the Challenger are stored outdoors at the Brampton, Ontario assembly plant. Cars built during winter months accumulate significant surface rust on control arms, tie rods, and bolts before assembly. This is cosmetically concerning but can become structurally problematic over time in salt-road climates. Upper control arms, lower tie rods, and related hardware may need early replacement. Dodge has replaced affected parts under warranty in some cases. The issue is most pronounced on 2015-2017 models and less of a concern on later production. In Europe, this primarily affects cars imported from cold US states or Canadian provinces.
Exhaust manifold bolt breakage
€500 - 2,5007 of 7
Cast iron manifold bolts snap due to thermal cycling against aluminum cylinder heads · more· less
A universal HEMI V8 issue that also affects the supercharged 6.2L. The dissimilar metals (cast iron exhaust manifold, aluminum cylinder head) create galvanic corrosion that weakens the bolts over thousands of heat cycles. The rear passenger-side bolt is typically the first to fail. Symptoms include an exhaust leak ticking noise on cold start that diminishes as the engine warms and the manifold expands to seal the gap. Simple bolt extraction and replacement costs approximately €500, but if bolts break flush with the cylinder head, drilling and helicoil repair is required. If the manifold is warped or cracked, full replacement runs €1,500-2,500. Aftermarket stainless steel bolt kits significantly reduce recurrence.
Robust engine, but supercharger adds complexity and cost
The 6.2L supercharged HEMI is fundamentally a strong engine, and many Hellcats have exceeded 150,000 km without major powertrain issues. From 2017 onwards, the supercharger bearing problems that plagued early cars were largely resolved. The main ownership risks center around the supercharger system (bearings, intercooler pump), drivetrain components stressed by extreme torque (driveshaft, differential), and the high cost of consumables (brakes, tires). In Europe, limited dealer access and parts sourcing from the US add both cost and downtime to any repair. The ZF 8HP90 automatic transmission is generally reliable and rarely causes issues.
Service history
Complete records from US-car specialist or authorized importer essential. Verify oil change intervals (synthetic 0W-40 every 10,000 km or annually).
Tires
Check tread depth, age, and uneven wear. Rear tires wear significantly faster due to 650+ lb-ft of torque.
Cold start
Start the engine completely cold. Listen carefully for supercharger whine, exhaust ticking, or any unusual rattling.
Test drive
Minimum 30 minutes including highway speeds. Listen for differential whine, driveshaft clunking, and check boost pressure.
Specific for this vehicle
Listen for abnormal supercharger noise at idle
A grinding or rattling sound from the supercharger at idle indicates bearing wear. This is the most expensive potential repair.
Check for driveshaft clunking on acceleration
Shift between drive and reverse, then accelerate gently. Any clunk or vibration indicates center bearing wear.
Inspect hood scoop and paint around air intake
Look for paint chips, bubbling, or corrosion around the hood scoop edges. Check if the updated scoop design has been fitted.
+ 5 more checksShow less
Test differential at highway speed and during slow turns
Drive at 80-120 km/h and listen for whining from the rear. During parking maneuvers, listen for groaning noises.
Verify intercooler system operation
Check for warning lights related to the charge air system. Verify intercooler coolant level is correct. Look for corrosion at the pump connector.
Check for exhaust manifold leak ticking
On cold start, listen for a metallic ticking from the engine bay that fades as the engine warms. This indicates broken manifold bolts.
Verify European homologation and conversion
Confirm proper EU type approval, headlight conversion to European spec, and speedometer in km/h. Incomplete conversions add significant cost.
Inspect suspension components for rust
Check control arms, tie rods, and bolts for excessive corrosion, especially on cars imported from northern US states or Canada.
Recalls and Technical Service Bulletins
Fuel rail crossover hose leak (2015 SRT with 6.2L supercharged, manufactured Sep 2014 - Feb 2015)Critical - verify completed
Engine oil cooler hose separation and fire risk (2017, manufactured Feb - May 2017)Critical - verify completed
Cruise control deactivation failure (2015-2018)Verify completed
Contact a Dodge/Stellantis dealer or AEC Europe importer with the VIN to verify all recalls have been completed. The fuel rail crossover hose (2015) and oil cooler hose (2017) recalls are particularly important as both carry fire risk.
Warranty Status
EU warranty (2 years via AEC importer)Expired on all used Hellcats
US factory warranty (3 years / 60,000 miles basic)Expired on most used imports
US powertrain warranty (5 years / 100,000 miles)May still apply on 2021+ US-spec cars
European-market Hellcats sold through AEC Europe carry a 2-year warranty. US-spec imports may retain residual powertrain warranty if under 5 years and 100,000 miles, but enforcing US warranty claims in Europe can be difficult. Verify warranty status and transferability before purchase.
Sources: Research draws on model-specific owner forums and owner communities, recall information from official authorities, German automotive press, and multiple workshop cost references cross-checked against each other.
This report is for informational purposes only and does not constitute professional advice. Estimates may be inaccurate. Always have a qualified specialist inspect the vehicle before purchase. We accept no liability for decisions made based on this information.
