VW Touareg
V6 TDI with 170 kW on MLB Evo platform. Base diesel of the Touareg III. Reliable; AdBlue system as maintenance point.
Elevated everyday tourer
231 hp from the 3.0 TDI V6 is the entry engine in the Touareg III — effortless, comfort-focused, no sports car.
Engine Weaknesses 5
The variable turbine geometry (VTG) of the 3.0 TDI tends to coke up its guide vanes, especially with short-trip use. Coolant ingress into the turbo can block the VTG and cause boost loss or turbo failure.
Symptoms: Whistling or rattling turbo noise, power loss, boost pressure warning
The EA897-Evo in the Touareg III also shows timing chain issues at high mileage. Rattle on cold start is the first signal. Repair is more involved than on predecessors due to the MLB-Evo architecture.
Symptoms: Metallic rattle on cold start, subsiding after reaching operating temperature
The DEND engine in the Touareg III shows known problems with the NOx sensor and AdBlue injection. Fault code P20EE (SCR catalyst efficiency) occurs frequently. Sensor or injector replacement required.
Symptoms: MIL, AdBlue warning display, fault code P20EE, increased AdBlue consumption
With predominantly city driving, the DEND engine DPF clogs without adequate regeneration runs. The heavy vehicle requires regular motorway driving to passively burn off the filter.
Symptoms: DPF warning light, power reduction, increased fuel consumption, occasional Limp Mode
The DEND 1.5 TSI EA211 evo2 (Golf 8, Tiguan, T-Roc from 2022) shows particularly strong stumbling and hesitation when pulling away in low gears with a cold engine. The improved ACTplus cylinder deactivation reduced the issue from the evo generation but could not fully eliminate it. VW software updates have only been partially effective so far.
Symptoms: Stumbling when pulling away especially at low temperatures, hesitation in first few gears, turbo lag combined with ACT transitions
Vehicle Weaknesses 14
The 40A switching relay for the air suspension compressor gums up after 3–4 years. Vehicle sinks overnight, especially at the front. Compressor replacement including diagnostics: 400–1,500 €; air bag failures additional up to 2,000 €.
Defective spindle drive in the electric tailgate: a pre-loaded spring can detach and injure people. Affects vehicles with servo closing (4E7) or virtual pedal (5i6) from production January 2019. 2,100 units worldwide.
Brake discs on V6 models are prone to heavy corrosion and pitting. Replacement sometimes necessary after only 17,000–21,000 km. OEM discs cost approx. 470 € each; cheaper alternatives from 65 €. The large 400 mm front discs are particularly affected.
The infotainment system fails to start correctly after software updates or freezes up. Navigation destinations are periodically deleted. Control unit replacement required if software reset doesn't help. Particularly affects model year 2019–2021.
If the differentials and transfer case are not serviced with fresh oil every 60,000 km, bearing noise and banging from the rear differential develop. Incorrect differential oil generates rumbling when turning.
On the Touareg CR, the rubber hoses of the refrigerant lines become porous — particularly the hose at the rear left of the wheel arch on four-zone air conditioning systems. Refrigerant loss leads to total failure. OEM part costs approx. 420 €.
On the Touareg CR, hydraulic power steering assistance sporadically fails when manoeuvring slowly at full lock. Contaminated or aged hydraulic fluid is the most common cause.
The Innovision Cockpit in the Touareg CR loses saved user data after a restart. The infotainment sporadically fails to start or stays on a black screen. Software updates via the dealer are often the only solution.
On the Touareg CR, the Innovision central display fails or shows a black screen. The control unit is defective and must be replaced. VW has acknowledged the problem; waiting times for updates can exceed a year.
On the Touareg CR with electric towbar, the adjustment motor fails: the coupling extends but can no longer retract. Repair often only possible by complete replacement; cost up to 2,000 €.
The IQ.Light Matrix LED system on the Touareg CR dazzles oncoming traffic due to incorrect calibration. Camera and headlights must be electronically synchronised; often not correctly set even from the factory.
Rumbling noises occur at the rear axle on the right over rough road surfaces. Worn damper mounts or anti-roll bar bushings are the cause. Diagnosis is difficult as the noise sometimes persists after damper replacement.
Screws on the tailgate gas dampers and underbody fixings show noticeable corrosion after 3–4 years. Corrosion protection on the screws is described as poor by owners. Visually off-putting; rarely structurally critical.
The reversing camera and Area View system sporadically show no image or freeze. Often fixable by software update, but sometimes a hardware defect. The IQ.Light adaptive headlight system incorrectly regulates the beam range.