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Maserati GranTurismo Common Problems: A Specialist's Guide for Ontario Owners
The Maserati GranTurismo is one of the most rewarding cars we work on at Foreign Automotive. Built from 2007 to 2019, it pairs a Ferrari-derived V8 with genuine grand-touring manners, and after nearly two decades on the road it has earned a loyal following among enthusiasts across Kitchener-Waterloo and the GTA. As an independent European and exotic specialist serving Ontario since 1992, we see these cars regularly, and the truth is that the Maserati GranTurismo is far more dependable than its exotic badge suggests, provided you understand its handful of known weak points. Here is what actually goes wrong, what it costs to put right, and how Ontario's climate factors in.
The Cam Variator Rattle: The Issue Every Owner Should Know
If you own a Maserati GranTurismo, or are shopping for one, the camshaft variators are the first thing to understand. The signature symptom is a loud metallic rattle on a cold start that lasts a second or two and then disappears once oil pressure builds. That noise comes from the hydraulic cam variators, the timing actuators on the intake camshafts, not from the camshafts or the timing chain themselves. When the engine sits, oil drains back out of the variators. On the next cold start there is a brief moment before oil pressure refills them, and worn internal components rattle in that gap.
Maserati acknowledged the problem in a technical bulletin covering early wet-sump cars, and the fix has been well understood by specialists for years. A proper repair replaces the intake variators and, on a thorough job, has the front camshaft bearing caps machined to accept oil pressure check valves. Those check valves keep oil trapped in the variators when the engine is off, which stops the rattle from returning. It is labour-intensive work, because reaching the variators means opening the front of the F136 V8, so it is not a job for a general garage. At a dealer the bill can climb past $12,000 CAD; at an independent specialist the same repair commonly lands between $5,000 and $9,000 CAD, depending on whether you replace the variators alone or carry out the full check-valve solution. A brief rattle is not an emergency, but a worsening one should be assessed rather than ignored.
The F136 V8: Oil Leaks and the Good News About Timing
The heart of every Maserati GranTurismo is the F136 V8, the same engine family Maserati shares with Ferrari and builds in Maranello: 4.2 litres in the base car and 4.7 litres in the S, Sport and MC variants. It is a strong, high-revving engine, and here is the good news for owners worried about exotic running costs. The F136 uses a timing chain, not a belt, so there is no costly scheduled belt replacement of the kind that haunts older Ferraris and earlier Maseratis.
What the engine does develop with age is oil seepage. Valve cover gaskets, the oil pan gasket, and the upper and lower front covers are the usual culprits. Light seepage is common and not alarming, but heavier leaks should be addressed before oil reaches the belt, alternator or hot exhaust. Plan on a valve cover gasket job in the $1,500 to $3,500 CAD range, depending on what else is found open. Otherwise the F136 asks only for fresh oil on time, quality plugs and coils, and a technician who knows the engine.
Transmissions: The Bulletproof ZF and the MC-Shift
The Maserati GranTurismo came with two very different gearboxes, and which one you have changes the maintenance picture. Most cars, the 4.2, the GranTurismo S Automatic and the Sport, use the ZF 6HP26 six-speed automatic. It is one of the most durable automatics ever built, and with regular fluid and filter service every 60,000 to 80,000 km it will outlast most of the car. The one weak point to watch is the transmission heat exchanger: when it fails internally, coolant and transmission fluid cross-contaminate, which shows up as a milky fluid and demands prompt attention. A fluid service runs roughly $600 to $1,200 CAD; a heat exchanger replacement costs more.
The GranTurismo S and MC Stradale instead use the MC-Shift, an electro-actuated single-clutch automated manual mounted at the rear. It delivers fast, dramatic shifts but wears a clutch like any manual, and replacement is a several-thousand-dollar job. If you are looking at an S, have the clutch wear measured first; a specialist can read it through Maserati diagnostics, so it is not a surprise later.
Suspension, Brakes and the Sticky Interior
Beyond the drivetrain, the Maserati GranTurismo shares a few age-related issues with its exotic peers. The Skyhook adaptive dampers can fail and are not cheap per corner, and front suspension bushings and control arms wear with Ontario's road surfaces. The brakes are large and the consumables are priced to match, so budget accordingly for a proper pad and rotor service, and far more if your car wears the optional carbon-ceramic discs. And like the Ferrari F430 of the same era, the GranTurismo suffers from the notorious sticky interior trim, where the soft-touch coating on buttons and console pieces turns tacky over time. It is cosmetic, but it bothers owners, and the affected parts can be refinished or replaced.
The Ontario Factor: Storage, Cold Starts and Salt
Most Maserati GranTurismo owners in Kitchener-Waterloo treat the car as a three-season pleasure, and that is exactly the right call. But seasonal storage has its own demands. These cars carry many electronic modules and will flatten a battery over a long Ontario winter, so a quality battery tender is essential. Cold starts are also when the variators are under the most stress, which is one more reason to address any rattle before storage rather than after. If you do venture out on a salted road, wash the underside promptly, because the GranTurismo's brake rotors and hardware surface-rust quickly when a car sits, and Ontario road salt accelerates everything. Fresh fuel and a full tank before storage round out a sensible routine.
Because the F136 V8 is shared with Ferrari, the diagnostic and mechanical experience transfers directly. We service both marques under one roof at Foreign Automotive, which is exactly why owners bring exotic grand tourers to an independent specialist rather than the nearest dealer. We can also handle the upgrades GranTurismo owners love most, from exhaust work that unlocks more of that Maserati V8 soundtrack to suspension and brake refreshes.
Hearing a rattle on cold start, or due for major service?
Foreign Automotive has serviced European and exotic cars in Kitchener-Waterloo since 1992. Book an assessment for your Maserati GranTurismo.
Contact Us(519) 894-9551 | sales@foreignautomotive.ca
Frequently Asked Questions
Is the Maserati GranTurismo variator rattle serious?
A brief rattle on cold start is common and not an immediate emergency, but it signals worn cam variators that will get worse over time. The proper fix is to replace the intake variators and add oil pressure check valves so they hold oil when the engine is off. Have it assessed before it worsens.
Does the Maserati GranTurismo need a timing belt service?
No. The F136 V8 uses a timing chain, not a belt, so there is no expensive scheduled belt replacement. This is one of the GranTurismo's pleasant surprises compared with older exotic Italians.
Is the ZF automatic in the GranTurismo reliable?
Yes. The ZF 6HP26 six-speed automatic is exceptionally durable. Keep up with fluid and filter service every 60,000 to 80,000 km and watch for a leaking heat exchanger, and it should give you little trouble.
How much does it cost to maintain a Maserati GranTurismo in Ontario?
Routine annual service typically runs $1,200 to $2,500 CAD. Larger jobs, such as variators, a clutch on an MC-Shift car, or a brake overhaul, cost more, which is why a documented service history and an independent specialist matter so much on these cars.
Can an independent shop service my Maserati instead of the dealer?
Absolutely. As an independent European and exotic specialist since 1992, Foreign Automotive services the GranTurismo with the same diagnostic depth as a dealer, and because we also work on Ferrari's version of the same V8, the expertise carries straight across.
Foreign Automotive - Your trusted European and exotic car specialist in Kitchener-Waterloo, serving Ontario since 1992.
