Review: Volkswagen Mk.7 Golf R Wagon (2015-16)

Overview

Released in Australia in July 2015, the Volkswagen Golf R Wagon was solely available as a limited-run Wolfsburg Edition. Manufactured in Wolfsburg, Germany, the all-wheel drive VW Mk.7 Golf R Wagon was powered by a 2.0-litre turbocharged petrol engine that was mated to a six-speed double clutch transmission (DCT or Volkswagen’s ‘DSG’).

EA888 Gen 3 engine

The Golf R Wagon was powered by Volkswagen’s 1984 cc CJXB EA888 Gen 3 four-cylinder petrol engine which had a grey cast iron block with an 82.5 mm bore and a 92.8 mm stroke, a die-forged steel crankshaft with five main bearings, a cast aluminium alloy cylinder head, an IHI turbocharger which provided peak boost pressure of 1.2 bar (17.4 psi), an intercooler, double overhead camshafts driven by gear chains, variable intake and exhaust camshaft timing, two-stage variable exhaust valve lift, four valves per cylinder actuated by roller finger cam followers and a compression ratio of 9.3:1.

Compared to the Mk.7 Golf GTi and GTi Performance CCHA and CHHB engines , changes for the Golf R Wagon’s CJXB engine included:

• A revised cylinder head (including the exhaust valves, valve seats and springs;
• Modified pistons;
• High-pressure injection valves; and,
• A larger IHI turbocharger.

With the double clutch transmission, the Golf R Wagon could accelerate from rest to 100 km/h in 5.1 seconds. Furthermore, the Golf R Wagon required 98 RON premium unleaded petrol (PULP).

DSG transmission

The transversely mounted DSG unit had two wet clutches, two input shafts and two outputs shafts. In this arrangement, Clutch 1 (C1) operated the odd gears (plus reverse), while Clutch 2 (C2) operated the even gears. When driving, the next-higher gear ratio could be engaged without actually being activated. To change gears, the clutch for the current gear would open and the other clutch (for the higher gear) would engage under electrohydraulic control. Since the opening and closing actions of the two clutches overlapped, Volkswagen claimed that the system provided smooth gearshifts in less than four-hundredths of a second.

In addition to its fully automatic shift mode, the DSG had a Tiptronic function to permit manual gear selection – this could be performed via the steering wheel gearshift paddles.

Haldex 5 all-wheel drive (AWD) system

The Golf R Wagon was fitted with a fifth-generation Haldex all-wheel drive system which consisted an electronically controlled and hydraulically actuated multi-plate clutch coupling (located in front of the rear axle differential at the end of the prop shaft). Under low loads or when coasting, the rear axle was decoupled to reduce fuel consumption. If, however, there was a loss of front wheel traction or such a loss was anticipated by on-board sensors, then an electrohydraulic oil pump would apply pressure to the clutch plates to transfer up to 50 per cent of the engine’s torque to the rear wheels (for a 50:50 front:rear torque split).

Extended Electronic Differential Lock (XDL)

The Golf R Wagon was fitted with an ‘Extended Electronic Differential Lock’ (Volkswagen’s ‘XDL’). When cornering, the XDL responded to the unloading of the front inside wheel by applying the brakes to that wheel to prevent wheelspin and minimise understeer.

Dimensions

Compared to the related Mk.7 Golf R hatch , the Golf R Wagon was 332 mm longer (at 4596 mm), the same width (1799 mm), 25 mm taller (at 1467 mm) and had a 10 mm longer wheelbase (2630 mm). The Golf R Wagon had luggage capacity of 605 litres with the rear seats upright, though this increased to 1620 litres when the rear seats were folded down.

Suspension

The Volkswagen Mk.7 Golf R Wagon had MacPherson strut front suspension with lower A-arms and an anti-roll bar, while the independent four-link rear suspension had coil springs and an anti-roll bar. The Golf R Wagon was also fitted with electronically-controlled, adaptive dampers (Volkswagen’s ‘Adaptive Chassis Control’) which could vary damping resistance according to road conditions. With Adaptive Chassis Control, the driver could also select from Normal, Comfort and Sport settings which also altered throttle response and steering weight.

Steering

The Mk.7 Golf R Wagon had electric, speed-sensitive rack-and-pinion steering. For the Mk.7 Golf R Wagon, the steering had a progressive steering ratio such that the amount of steering wheel rotation required to turn the wheels decreased as steering lock increased.

Safety equipment

Standard safety equipment for the Volkswagen Mk.7 Golf R Wagon included dual front airbags, a driver’s knee airbag, front side airbags, full-length curtain airbags, ABS, electronic brake force distribution, brake assist, electronic stability control, traction control and front seatbelts with pretensioners and load limiters.

As standard, the Golf R Wagon Wolfsburg Edition was also fitted with:

• Adaptive Cruise Control (ACC): using a radar sensor, ACC could autonomously apply the vehicle’s brakes to maintain a preset distance to vehicle ahead. ACC could also cause the vehicle to accelerate to its pre-set speed after braking;
• Front Assist: Front Assist used a radar sensor to detect if the vehicle was closing too fast on the vehicle ahead. If this occurred, Front Assist would
  • provide audible and visual warnings to the driver,
  • bring the brake pads into contact with the brake discs for an emergency stop; and,
  • automatically apply the brakes to warn the driver. If the driver failed to respond, Front Assist would apply the brakes automatically to avoid or reduce the severity a collision.
• City Emergency Brake (City EB): at speeds below 30 km/h, City EB would monitor the road ahead for vehicles. If a collision was considered likely, City EB would prime the brakes and increase braking assistance. If the driver did not react and a collision was imminent, City EB would autonomously initiate emergency braking;
• Proactive occupant protection system: in a potential accident situation, the seatbelts would be tensioned and windows closed;
• Fatigue Detection: monitored driver behavior at speeds in excess of 65 km/h for signs of fatigue. If the driver exhibited signs of fatigue, a tone would sound and a warning would appear in the multi-function display;
• Multi-collision brake: automatically braked the vehicle after a collision to reduce kinetic energy and minimise the likelihood of a second impact;
• A Blind Spot Monitor: could detect traffic in the driver’s blind spot and provide a visual warning; and,
• Rear Traffic Alert: when the driver was attempting to reverse out of a parking space, Rear Traffic Alert used radar sensors in the rear bumper to detect traffic up to 50 metres away that may cross the vehicle’s intended path. If a collision was considered imminent, Rear Traffic Alert would provide a visual warning, followed by an audible warning. If the driver did not respond to the warnings and there is an immediate collision risk, Rear Traffic Alert would automatically apply the brakes.

Brakes

Like the Mk.7 Golf GTi Performance , the Golf R Wagon had 340 mm by 30 mm ventilated front brake discs and 310 mm by 22 mm ventilated rear discs.

Features: Golf R Wagon

Standard features for the Golf R Wagon included Volkswagen’s ‘Discover Media’ audio and satellite navigation system with a 6.5-inch colour touch screen, eight speakers, CD player, MP3/WMA/ACC-compatibility, auxiliary inputs (SD card/3.5 mm/USB), Bluetooth mobile phone and audio streaming, ‘App-Connect’ USB interface for enhanced smartphone connectivity (including access to Apple CarPlay, Android Auto and MirrorLink), dual-zone climate control air conditioning, front sports seats, ‘Carbon Nappa’ leather upholstery, individually heated front seats, cruise control with a programmable speed limiter, bi-xenon headlights with washers, integrated LED daytime running lights, a rear fog lamp, dark-tinted LED tail-lights, daytime running lights, front and rear parking sensors, a rear view camera with static guidance lines, automatic headlights, rain-sensing wipers, a leather-rimmed flat steering wheel, 40/60 split and folding rear seats, remote central locking with proximity key (i.e. keyless entry), power windows, power adjustable and heated mirrors, automatic tilting of the passenger side mirror on reverse, a height and reach adjustable steering wheel, height adjustable front seats, an electromechanical parking brake, tyre pressure monitoring, two 12 volt power sockets (centre console and cargo area), an auto-dimming rear view mirror, a black roofliner, front LED reading lights, illuminated vanity mirrors, LED ambient lighting, push-button start, brushed aluminium pedals, illuminated sill plates with aluminium finish, front and rear carpet mats, a cargo cover, tinted windows and rear privacy glass, tyre pressure monitoring, trip computer, an alarm and immobiliser.

Visual cues for the Golf R Wagon Wolfsburg Edition included 19-inch ‘Pretoria’ black alloy wheels, black door mirror covers, a Wolfsburg crest badge and black roof rails. The Golf R Wolfsburg Edition was also available in an Oryx White Pearl paint finish.

Related links

• Wikipedia.org: Volkswagen Mk.7 Golf