Renault Master vs Mercedes-Benz E400

What's the difference?

If you’re after a budget-conscious offering in the large van segment, the Renault Master could be a really solid proposition. It falls short of the safety expectations set by its newer rival, though, and that’s something you might not be able to put a price on.

A convertible that doesn't feel like one when the roof is in place is no easy task to build, but it's one Merc's engineers have pulled off with the E400 4Matic Cabriolet. Effortless power, a tonne of technology and a comfy, leather-wrapped cabin all make Merc's drop-top E-Class a strong proposition.

The front-end styling of the Master has been modernised with a “robust” new look which sees it adopt a more upright nose with a bulkier grille, squared-off headlights (with LED daytime running lights as standard, along with halogen headlights).

There were no other changes made to the exterior, so if you see it side on or from the rear, you’d be hard pressed to tell if it's the new model.

This is the second facelift for this generation (X62) Master, which originated back in 2010. It is also offered in some markets as a Nissan, Opel, and Vauxhall. And this version certainly freshens up the appearance, though the practicality of the Master line-up remains unchanged.

That’s a good thing: you can still get the van as a short-wheelbase with low roof (L1H1), a mid-wheelbase with mid roof (L2H2), a long-wheelbase with mid roof (L3H2), or an extra-long-wheelbase with high roof (L4H3). There’s also the choice of a single cab-chassis Platform ute model, too. 

Our test model is the L2H2, meaning dimensions of 5575mm long on a lengthy 3682mm wheelbase (giving it a 13.6-metre turning circle), while the width is 2070mm and the height is 2499mm. Too tall for car parks (and drive-thru windows, in this age of social distancing). 

The good news about the height, though, is that it allows you excellent interior dimensions. The cargo hold of this version is 3083mm long, 1765mm wide (and 1380mm between the wheel-arches, enough for Aussie pallets to slide in easily), and the height is 1894mm inside. I’m six-foot tall (1820mm) and that meant I could safely step in and out of the cargo zone without fear of hitting my head. The load space is 10.8 cubic metres in this spec. 

As you’ll see in the interior section, the cabin has been given a bit of attention too - you can see it in the images below.

Elegance. That's the word that springs to mind when you first clamp eyes on the E400 Cabriolet. While the Coupe version has a crouched-over sportiness about its exterior design, the convertible is all about big and boat-like proportions, especially with the fabric roof opened.

Like nearly all drop-tops, the E400 looks best with the cabin open to the elements, and the side profile especially paints a picture of well-heeled wafting, with only the AMG alloys and body styling hinting at the performance on offer under the bonnet.

Inside, expect perfectly executed modern luxury, with soft leather seats, touchpoints that melt under the fingers and a sprinkling of woodgrain trim. All of which feel like old-world luxury, nicely juxtaposed by the huge twin-screen display that dominates the dash.

Like all vans in this segment there are some cabin smarts that will make your life a lot easier if you spend a lot of time in the cockpit.

There are storage options aplenty, including overhead folder holders, a trio of dash-top storage caddies, dash-top cup holders, huge door pockets with bottle holders, some smaller storage cubbies near the shifter, and a glovebox that is, in the French tradition, good to hold a pair of gloves and not much else. This model had the dual passenger bench seat, with a hidden storage section underneath, and you can fold the middle seat down to form a desk platform with cup holders if that’s what you need.

Along with the storage smarts, the updated Master has seen some major changes in terms of infotainment intelligence, too. The new 7.0-inch MediaNav touchscreen system with Apple CarPlay and Android Auto is a welcome advancement for the brand, and during my time in the vehicle it proved simple to use and quick to react. The sound isn’t terrific, with just two speakers fitted, and I had to turn it up pretty loud to overcome the wind noise from this mid-roof model.

The driver’s seat is comfortable and offers decent adjustment, with height and lumbar adjustment. It’s easy to step up into the cab, too, despite there not being side grab handles. The driver also gets a new digital instrument display section on the redesigned dashboard, which includes a gear-shift indicator (but not a gear position indicator), and a digital speedometer and trip computer.

The steering wheel is new, too, and it’s much nicer than the old grainy plastic number in the pre-facelift version. Gone are the round vents across the dash and round plastic sections of the old model - now there are squared-off, more modern looking finishes that clearly aim to mimic the exterior’s now boxy-edged body.

In the cargo zone there are multiple tie-down hooks (eight on the floor, four on the side wall pillars), making for plenty of options to secure a load - though as can often be found with these eye-hook points, they can be a little too far inboard to make good use of, and in the Master’s case, there are no tie-down points rear of the wheel-arches. There is a 12-volt outlet in the back pillar, however.

It's a two-door, four-seat convertible, so practicality isn't at the very top of its list of strengths.

That said, life is peachy for upfront riders, both of whom will travel in spacious luxury. There are two cupholders hidden beneath a woodgrain cover underneath the climate controls - also home to a power outlet - as well as a clever double-hinged central storage bin that can be opened by either the passenger or driver, and which opens to reveal two USB points.

There's room in the doors for bottles, too, and the entertainment system can be controlled via a touchpad controller mounted above the traditional click wheel - although, to be honest, using it is harder and more time consuming than simply pretending it doesn't exist.

Climbing into the back (and we mean climb - there are no rear doors) is made easier by the fact you can fold and slide the front seats automatically by pulling a lever mounted near the headrest. Once there, though, you'll find space is a little tighter, and you feel weirdly cocooned, owing to the huge raised tunnel that runs through the middle of the cabin, and the low roof line.

There are two cupholders that live in the space where the middle seat would normally go, and there's a little bottle-holder cubby to the left of both backseat riders. There are air vents back there, too, but no temperature controls.

The front doors are huge and really very heavy, requiring considerable heft to open them.

The boot space is predictably a little limited, with 385 litres on offer. There's also a little flip-down separator, which shows you how much room the roof will need to come down, reducing boot space to 310 litres. Speaking of which, the soft-top can be lowered in just 20 seconds, and at speeds up to 50km/h.

One practicality quirk, though. The front (and only) doors are huge and really very heavy, requiring considerable heft to open them, especially if you're parked on a slight angle. Honestly, I was reduced to kind of pushing them open with my foot at times.

At $157,400, the Cabriolet is the most expensive model in the E400 family, and is roughly $20k more than the sedan and $10k more than the coupe variants.

That money buys you a comprehensively kitted-out ride - as it really should - with the E400 Cabriolet arriving with 20-inch AMG alloys, LED headlights (made up of 84 LEDs) with high-beam assist, proximity unlocking with push-button start, air suspension and Merc's AIRCAP - a lip above the windscreen that's designed to push air up and over the cabin when the roof is down.

Inside, you'll find leather seats, dual-zone climate control and the clever 'AirScarf' system, which pumps hot air onto your neck when the roof is down (and it's cold out). You'll also nab heated front seats, power windows front and back and an automatic belt feeder, which saves you reaching over your shoulder to get to your seatbelt. So exhausting.

On the tech front, expect a killer 590W, 13-speaker Burmester stereo, controlled by the seriously impressive widescreen cockpit; two 12.3-inch screens that spill from about the centre of the dash all the way to the driver's binnacle, and control everything from navigation to Apple CarPlay and Android Auto.

There's a whole bunch of safety stuff, including semi-autonomous technology, but we'll drill down on that under the Safety sub-heading.

The power outputs and torque figures depend on the transmission you choose. 

Despite the fact that both manual and automatic versions of the Master run a 2.3-litre four-cylinder diesel engine, there’s a difference between the engines: the version with the six-speed manual transmission is a twin-turbo unit, while the six-speed automated manual transmission makes use of a single-turbo diesel.

There’s not much in it when it comes to the difference in outputs, however.

The manual version has a slight horsepower advantage, with 120kW of power (at 3500rpm) and 360Nm of torque (at 1500rpm).

The automated manual has a maximum power of 110kW (at 3500rpm) and 350Nm of torque (at 1500rpm).

Both transmissions are geared the same across all six ratios, though from experience, the automated manual is best left at the showroom. While rivals offer conventional torque converter automatic gearboxes to appeal to a broader customer base globally, the French brand persists with its pernickety somewhat-auto option instead.

The majority of models in the Master range are front-wheel drive (FWD), but there are a couple of long-wheelbase rear-wheel drive (RWD) models available. None are all-wheel drive (AWD) or four-wheel drive (4WD).

You might be interested to note the weight specs for the Master range. There are too many variables to bore you with here, but the details on the L2H2 mid-wheelbase manual I tested, according to Renault Australia, are as follows: kerb weight - 1887kg; gross vehicle mass/GVM - 3510kg; payload - 1623kg; towing capacity - 750kg un-braked, 2500kg braked. The gross combination mass (GCM) is 6000kg.

It's a fabulous engine, this twin-turbocharged V6 - even if it doesn't feel quite so lively in Cabriolet form as it does in the hardtop equivalents.

The 3.0-litre unit produces 245kW/480Nm, sending it to all four wheels via a nine-speed automatic transmission, linked to the standard 4Matic all-wheel drive system.

There is no official combined fuel consumption claim figure stated by Renault, as the vehicle falls into the heavy commercial vehicle space. 

But I can tell you it’s pretty impressive for fuel economy. I saw an average of just 8.5 litres per 100 kilometres over more than 1000km of testing - more than half of which was with the van loaded up with hundreds of kilograms of load.

With a 100-litre diesel tank, you could theoretically get about 1150km to a fill, and that’s with a mix of loaded and unloaded driving. 

One thing, though: most vehicles have a graphic on their dashboard to show which side the filler neck is - you know, you see a fuel bowser and the filler is on the right, that means your vehicle’s filler is on the right. Not in the Master. It has a graphic with the filler on the right, but the actual fuel cap is on the left. And like most vans, you have to open the passenger door to fuel up.

Worried about AdBlue? No need - the engine used in the Master range is a Euro 5 unit, so there is a diesel particulate filter, but no urea after treatment setup to mention.

Mercedes claims 7.4L/100km on the combined cycle (but you can expect to be pushing nine litres in real-world conditions), with emissions pegged at 170g per kilometre of CO2.

The 66-litre tank will only accepts 95RON fuel.

I did a mix of driving in the Master over the week I had it, including more than 600km of unladen driving. 

Why so many kays? I used it to move house, which meant I completed two “full” trips between Sydney’s inner-west and Cowra in the Central West of NSW, and two “empty” trips back to Sydney, as well.

I’ll get to how it drove with a load on board in the section below, but the unladen experience was pretty positive.

The engine and transmission are well teamed, and there’s a good amount of usable torque and very little lag to speak of. 

As with this entire generation of engines - a derivative engine in a different state of tune is used in the Nissan Navara - the refinement is mostly good until you reach higher in the rev range, where it can get a bit noisy and clattery. But the best work is done down low in the rev zone anyway. 

The manual shift action isn’t what I’d call “slinky”, more “clicky”. But it’s easy to row between gears as the action is light and the clutch isn’t too heavy, either. The gearing is generous, meaning you can saunter in sixth gear around 70km/h without the engine labouring too hard, and it’ll accelerate from there to freeway pace - provided you’re not going uphill.

There is a bit of ratio management required if you encounter a steep incline, but generally it’s a decently strong powertrain for its intended use - more on that below.

I’m always astounded about the steering and ride characteristics of vans of this size. Yes, it’s large, and yes, it can get blown around a little by crosswinds, and yes, you need to factor in the longish-wheelbase and larger turning circle that results from that… but it drives a lot smaller than it is.

The steering is direct and accurate, easy to judge at high or low speeds - which is great news when you’re parking (and there’s a good quality reversing camera and rear parking sensors, but you’ve just gotta remember the roof height, too).

The ride is adequate without a load on board, too. The independent McPherson strut front suspension copes well with changes in surface and bump control, though it can be a little bouncy at times. The rear suspension is a leaf-spring torsion beam setup, and it can be a little clumsy over road joins when unladen. 

It also brakes well, with solid and trustworthy response from the four-wheel disc brakes at all speeds.

Sure, the E400 Cabriolet can drive itself, but we’re equally pleased to note that it’s still a lot more fun handling the steering duties yourself.

And that is mostly due to that fabulous engine; quiet and effortless at city speeds, rorty and enthusiastic at pace, and genuinely angry with the drive setting switched to their most hardcore Sport+ mode.

We’ve already spent time in the sedan version, and while this Cabriolet is heavier (1935kg vs 1820kg) and slightly slower to 100km/h (5.5sec vs 5.2sec) it doesn’t immediately feel it behind the wheel, with a similar and satisfying lurch into the future when you plant your foot.

But hard charging is not what this car is about, and the E 400 is at its peachy best when rolling about the city or the ‘burbs with the top down, and the warm summer air washing through the cabin.

In its normal drive settings, the steering is light but engaged, and the ride on offer from the standard air suspension is outstanding, cosseting the cabin from all but the very worst road imperfections, while the torque from the V6 serves up effortless, unobtrusive acceleration.

With the roof up, Merc’s designers have done a stellar job of hiding the fact this thing is a convertible at all. It’s a solid-feeling cabin with the fabric roof fastened, and the cabin is quiet and free from wind noise.

There are few cars on the road as overloaded with safety technology as the E400 Cabriolet.

The standard stuff is all there, of course. There's a 360-degree parking camera, as well as nine airbags (dual front, dual pelvic/thorax for front-seat passengers, dual sidebags for rear passengers, dual head bags in the doors and a knee airbag for the driver), rollover protection and tyre-pressure monitoring, as well as braking and traction aids.

But the E400 adds some really clever technology, including Merc's Driving Assistance Package Plus, which adds active lane keeping, blind-spot assist, cross-traffic alert and evasive steering assist.

It's this suite of systems that allows the E400 to navigate freeways autonomously, including changing lanes on demand. At the moment, the system will warn you to keep your hands on the wheel every so often, but you can sense a time when that will no longer be required. And that time is soon.

The E-Class range scored the maximum five-star ANCAP safety rating when crash tested in 2016.

The Renault van range is covered by a warranty plan that isn’t as good as you’ll get from VW or Ford. That is, the Master (and Trafic and Kangoo below it) have a three-year/unlimited kilometre warranty cover, which is two years shorter than the best in the class.

Service intervals are business-friendly at 12 months/30,000km, with a capped-price service plan spanning the first three years/90,000km. The service price is $599 per visit, but keep in mind you will need to replace the coolant ($132) and brake fluid ($79) every 60,000km. There’s also an accessory belt replacement at 90,000km ($506).

If you service your van at Renault, you’ll also be eligible for up to four years of roadside assistance cover. From the showroom floor there is 12 months cover.

Concerned about issues, problems, recalls, questions, queries, complaints, or reliability issues? Check out our Renault Master problems page.

Expect the usual three-year, unlimited-kilometre warranty, with service intervals pegged at 12 months or 25,000km. Mercedes' capped-price servicing scheme limits maintenance costs to $2280 for the first three years of ownership.